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180+ Presentation Topic Ideas for Students [Plus Templates]
![180+ Presentation Topic Ideas for Students [Plus Templates]](https://visme.co/blog/wp-content/uploads/2019/08/presentation-topic-ideas-header-wide.jpg "presentation class 7")
Written by: Orana Velarde
Coming up with a presentation topic idea that's meaningful, relevant and has a creative angle can be tough. If your teacher or professor just assigned you a presentation, and also asked you to pick your own topic, you're in the right place.
In this article, we've put together a list of informative and powerful presentation topic ideas for various subjects. When you're ready, head over to our presentation software to create an engaging slideshow that blows away your audience.
Here's a short selection of 8 easy-to-edit presentation templates you can edit, share and download with Visme. Check more templates below:
List of Presentation Topic Ideas for Students
We know how difficult it is to come up with an interesting presentation topic idea on the fly. That’s why we put together a list of more than 200 ideas to help you out.
We've organized these presentation topic ideas by subject so you can easily browse through and find what you're looking for. Each section also comes with a bonus presentation template!
We've also included some tips on designing a presentation once you've chosen a topic. For example, a flowchart data widget can help with a historic timeline presentation .
But first, let's dive into the topic ideas.
Table of Contents
Current events presentation topic ideas, education presentation topic ideas, general culture presentation topic ideas, health presentation topic ideas, history presentation topic ideas, life skills presentation topic ideas, literature presentation topic ideas, media presentation topic ideas, science presentation topic ideas, work life presentation topic ideas.
- Why Do Teachers Assign Student-Selected Presentations?
How to Pick the Right Presentation Topic
Presentation tips for students.
- What is the Israeli/Palestinian conflict?
- What is happening in Kashmir?
- What is ethnic cleansing and is it still relevant in 2021?
- Who is Malala Yousafzai?
- What are the different stances on immigration in the US?
- Should the death penalty be outlawed?
- Should University be free for everyone?
- What is racism?
- How can non-minorities be allies to minorities?
- What is White Privilege?
- Can a border wall really fix the immigration crisis?
- What is Brexit?
- What is Pride?
- What is gentrification?
- What is the European Union?
- What is Sharia Law?
- Why is it more profitable to be a plumber than a doctor?
- What is happening in Syria?
- Who is Harvey Weinstein and what is he accused of?
- What is the #metoo movement?
- What is happening in North Korea?
- What is the problem with guns in America?
Customize this presentation template to make it your own! Edit and Download
- What are the pros and cons of online education?
- What is dyslexia?
- What is the Pythagorean theorem?
- Is a college education worth it?
- Is reading better on Kindles or paper books?
- What is worldschooling?
- What is unschooling?
- Why are teachers underpaid?
- What is sociology?
- What is anthropology?
- What is social archaeology?
- Why do schools need mentorship programs?
- What is an education in Finland like?
- What is Montessori Education?
- Who is Rudolf Steiner?
- What is the most difficult language to learn?
- What is an Ivy League school?
- What is the SAT?
- What is the TOEFL?
- What is the IB program?
- How to get into an international university
- What is a learning disability?
- What is a gap year?
- Why is it important to learn a second language?
- What is a TCK?
- What is the foreign exchange program?
- Why is it important to study Physics?
- How does reading benefit the brain?
- Is Graffiti considered art?
- Ancient Greek myths in modern media
- Why should students learn about different religions?
- What are crop circles?
- What is Area 51?
- What are the origins of Rock and Roll?
- What was the Woodstock Music Festival?
- 10 memorable things about any country
- What are the different styles of coffee?
- What does living “off the grid” mean?
- What is Crossfit?
- What is cultural appropriation?
- What is Feminism?
- What is the difference between White Hat and Black Hat Hacking?
- Who is the artist formerly known as Prince?
- Why is yoga so popular?
- What is Art Therapy?
- What is the difference between 80’s parenting and current parenting?
- What is a journalist?
- What is the 'generation gap'?
- Who is a polyglot?
- What is the difference between a religion and a cult?
- Everything you need to know about COVID-19
- How does the human immune system work?
- What is the respiratory system?
- How are diseases spread?
- How does the nervous system work?
- What is skin cancer?
- What are infectious diseases?
- When to call 911
- What is the placebo effect?
- How to read a nutrition label
- How to eat a balanced diet
- What is CPR?
- How to dress a wound
- What is Alzheimer’s Disease?
- What is dry drowning?
- What are allergens?
- Why are cigarettes bad for you?
- How are medicines approved for human consumption?
- Why should Marijuana be legalized?
- What is a neurosurgeon?
- What is an EMT?
- How does the digestive system work?
- What are the effects of antidepressants on the human brain?
- What is Generalized Anxiety Disorder (GAD)?
- Is depression real?
- Prehistoric timeline of dinosaurs
- Your favorite president of the United States
- How has the role of women changed in society?
- Who was Alexander the Great?
- What is the Declaration of Independence?
- Who was Harriet Tubman?
- What is Pangea?
- What is Gobekli Tepe?
- Who is Nelson Mandela?
- What is the Berlin Wall?
- What is the Boxing Day Tsunami?
- Who were the Conquistadors?
- Who were the Incas?
- What is the story behind Thanksgiving?
- Who is Pocahontas?
- What is the origin of Language?
- How were Egyptian mummies conserved?
- What is the story of King Tut’s Curse?
- What made up the Ottoman Empire?
- What was the first civilization to ever emerge?
- What are the main Native American culture tribes?
Customize this presentation template to make it your own!
- Add your own text, images, colors and more
- Add interactive buttons and animations
- Customize anything to fit your design and content needs
- How to change a tire
- What are the basic cooking skills?
- How to do laundry
- How to budget monthly expenses
- What is a healthy morning routine?
- What are the essential tools for a household?
- How to furnish a house on the cheap
- How to drive a car
- How to save money
- How to take care of a baby
- How to take care of a plant
- How to change the AC filters
- How to minimize the use of plastic
- How to live trash-free
- How to fry an egg
- How to clean a house fast
- How to use the internet to find what you need
- Why is it important to teach our grandparents how to use the internet?
- How to get dressed for a funeral
- How to unclog a toilet or sink
- How to pack a first-aid kit at home
- What is emotional intelligence?
- Who is William Shakespeare?
- What is Haiku?
- What is The Catcher in The Rye about?
- Who is Dante Alighieri?
- What is a sonnet?
- What is magical realism?
- Who is Emily Bronte?
- How is the book 1984 relevant today?
- What is the difference between an autobiography and a memoir?
- What book should be made into a movie which hasn’t yet?
- Who is Oscar Wilde?
- Who is Orhan Pamuk?
- Who is Isaac Asimov?
- What is historical fiction?
- What is a Greek Tragedy?
- What is the hero’s journey?
- Who is Ulysses?
- What is the origin of science fiction literature?
- My top 10 favorite classic novels of all time
- Who were the Brothers Grimm?
- The colorful life of Ernest Hemingway
- How did the Industrial Revolution shape American literature?
- Evolution of the projector
- How can social media be dangerous for underage kids?
- The history of the internet
- What is the Marvel Cinematic Universe?
- Who is Steve Jobs?
- Who invented the television?
- Which came first, MTV or VH1?
- What is Virtual Reality?
- What is Augmented Reality?
- The evolution of film and cinema
- How are TV commercials made?
- What is the role of an art director?
- How are minorities represented in the media?
- How are women represented in the media?
- What is blogging?
- Who was Elvis Presley?
- The history of Jazz
- The history of Tango
- What is a social media manager ?
- What is content marketing?
- What is an influencer?
- How has binge-watching changed television?
- The impact of TikTok on advertising
- What is the agenda-setting theory?
- Mass communication in the digital age
- What is Artificial Intelligence (AI)?
- What are GMOs?
- What is organ donation and why is it important?
- How does the respiratory system work?
- Should human cloning be allowed?
- What is the greenhouse effect?
- Why do some people say climate change is a hoax ?
- What is the water cycle?
- What is Photosynthesis?
- What are the different states of matter?
- How is medicine made?
- What is alternative medicine?
- What is biochemistry?
- What is quantum physics?
- What is the Big Bang Theory?
- 50th anniversary of the moon landing
- What is the plant cycle?
- How are babies born?
- What is a particle accelerator?
- What is a light-year?
- Why do humans want to colonize Mars?
- Why is Pluto no longer a planet?
- What causes a wildfire?
- What is the pay gap?
- What is an entrepreneur?
- What is a franchise and how does it work?
- What are the best-paid careers?
- Why is it important to hire mothers back into the workforce?
- Should fathers have paternity leave?
- Are internships worth it?
- Why are more college-age students entering the labor force through skilled labor?
- Why is it important for high-schoolers to have summer jobs?
- What is the glass ceiling?
- How to live as a digital nomad
- How to stop discrimination in the workplace
- What is a Candy Striper?
- Is volunteering hurting the neediest?
- What does “the 9 to 5” mean?
- What constitutes a good work-life balance?
- When should moms go back to work?
- How to dress for a work interview
- How to write a resume/CV
- How to make an infographic
- How secure is a freelance career in 2021?
- The impact of COVID-19 on organizational culture?
- Do employers care about cover letters?
Why Do Teachers Assign Student-Selected Presentations? [Infographic]
By now, you must have already chosen a presentation topic idea . But you might still be wondering why your teacher assigned you this task in the first place.
No, your teacher is not out to get you by assigning a presentation you have to choose the topic for. There are a few reasons why teachers and professors assign presentations this way.
Choosing a presentation topic idea inspires you to look inside themselves to find a topic of interest. Knowing about your interests helps give direction to your future life and career plans.
Selecting presentation topic ideas on your own also helps you learn how to do research properly. You get more familiar with the practice of taking notes, creating an outline and prioritizing information.
Brainstorming various topic ideas is also great for improving your creative performance. And finally, getting up on stage and presenting prepares you for public speaking in front of an audience.
Here's a quick infographic to sum it all up.
Believe it or not, assigning a presentation is one of the best ways to teach a student how to learn on their own. It’s similar to asking a student to write an essay, but a lot more fun!
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- Hundreds of premade slides available
- Add animation and interactivity to your slides
- Choose from various presentation options
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If you're overwhelmed by all the school presentation ideas above and aren't sure which one is right for your presentation, don't worry. We have tips to help you pick the right topic in no time.
If after this process you still aren’t sure, just browse through the list above and find a specific presentation subject idea that sparks your interest most.
The first step to figuring out what your presentation should be about is to ask yourself these questions:
- What are your hobbies?
- What type of books do you read?
- When you play Trivial Pursuit, which topic are you good at?
- What kind of TV shows do you watch?
- What would you like to learn more about?
What Are Your Hobbies?
It’s easy to find a presentation topic by looking at your hobbies. The best part of this choice is that you’ll be passionate when presenting it to your peers.
For example, if you love woodworking, create a presentation about the history of woodworking or a step-by-step look at “How to make a wooden bowl by hand.”
What Type of Books Do You Read?
Look at the style of books you’ve been reading lately. Have any of them made an impact on your life?
If you're having a difficult time coming up with a topic idea, you can create a presentation about a book that you found really special, or about an author you’ve read a few books by.
When You Play Trivial Pursuit, Which Topic Are You Good At?
If you've ever played Trivial Pursuit or attended a Trivia Night, you must have noticed that some topics are easier for you to answer. That is your topic of interest and a great place to look for some ideas.
For example, if you always know the answer to the questions about classical music, you can create a presentation about your favorite composer.
What Kind of TV Shows Do You Watch?
What have you been binge-watching lately? Regardless if its Orange is The New Black or a documentary about the Sudanese civil war, you can find an interesting topic to work with.
It can be about history or current events. You could even do some kind of comparative analysis on how a specific show has affected you or the people who watch it.
What Would You Like to Learn More About?
Another way to find an interesting presentation topic idea is to think of things you want to learn more about. Take the opportunity to learn something new and then share it in your presentation.
Present the facts of what you learned or turn the presentation into a journal entry of your personal experience using the new information that you just learned.
Additionally, it’s important to remember that whatever topic you choose, it must also be appropriate.
“Depending on your audience and occasion purpose, you have to steer away from topics that might bore or offend your audience.”
Once you have chosen the perfect presentation topic idea, it’s time to create your presentation. Here are some tips for putting together a great presentation that will get you a good grade.
Presentation Mistakes to Avoid
First things first, let’s talk about some presentation no-no’s. You want to avoid these mistakes in any presentation you give—from a presentation for a grade in your middle school class all the way up to a business presentation.
Key presentation don’ts are:
- Don’t create slides full of text —your presentation is not a 30-page essay. Instead, create slides with just a few bullets and some type of visual to represent your content.
- Don’t just read off of your slides —you’ll bore your audience. Practice and rehearse your presentation or create index cards with speaking notes to make your presentation more engaging.
- Don’t use a new design, transition, animation, etc., on each slide —you’ll clutter up your design. Choose one single design, color scheme, font pairing, transition style, animation effect, what have you, and use it throughout to create a cohesive presentation design.
- Don’t present on topics you don’t understand —you’ll sound like you don’t know what you’re talking about. Even if you’re choosing a “new to you” topic, you need to do enough research to have a firm grasp on the information you’re presenting.
- Don’t ramble and go over your allotted time —you’ll sound flustered and unorganized. Again, make sure you practice your presentation so that you can smoothly transition from slide to slide and cover all information in the time given.
Use Data Visualization in Your Presentation
Regardless of which type of topic you’ve chosen, there’s likely some sort of data or information that would be better presented via visual rather than written out numbers or text.
Make sure you choose a presentation tool that makes it easy to visualize certain information. For example, Visme allows you to create a number of data visualizations that help make information pop on your slide.
Some examples of data visualizations you can use within your presentation include:
- Timelines for historical information
- Charts and graphs for numerical data sets
- Tables for organizing text
- Maps for sharing geographic information
- Flowcharts and diagrams for organizing information
- Data widgets for visualizing standalone numbers
Avoid Using Boring Layouts
Don’t let your presentation look like a PowerPoint from the nineties with a blank white background and two columns of boring bullet points. Instead, take advantage of engaging presentation templates and spice up your slides.
First, start with a template that’s going to make your information stand out. You can browse a few options that Visme offers below.
Look for a unique way of presenting the information, use interesting backgrounds, apply shaped frames to the images, embed videos and use colorful shapes to create separations.
But for some specific ideas, consider pulling these design tactics into your presentation.
Slide Background Ideas:
- Set photos as your slide background
- Use color overlays to make sure your content is still visible on top of the photo background
- Create a gradient background
- Use a stock video as your background to create motion
- Choose a color other than white as your background
- Set a pattern as your background
- Use an animated background
Visual Element Ideas:
- Place photos strategically on your slide to drive your point home
- Use colorful shapes and animated graphics
- Try 3D graphics to make your content pop
- Apply shaped frames to images within your slides
- Use icons to visualize your text
Interactive Ideas:
Incorporate hover-overs or pop-ups that hide additional information Link your slides to create a non-linear presentation Embed videos that provide even more information Create audio clips that activate when you click on an element There are so many ways to make sure your slides are engaging so you keep your audience interested throughout your entire presentation.
Prepare for Your Presentation
We already touched on how important it is to practice and rehearse your presentation. You want to appear confident and well-versed in your topic. Presenting and public speaking are also skills that you can carry into adulthood in your future career.
Although nerve-wracking, you’ll have a turn to deliver your presentation in front of the class. You’ll give your speech while simultaneously showcasing your slides.
Utilize these tips when preparing for your presentation:
- Practice speaking while moving through your slides at least three times
- Memorize the order of your slides and what information is on each slide
- Create a flashcard for each slide so you have basic talking points in front of you
- Use memorization techniques so you don’t have to fully rely on your flashcards
- Focus on the end goal: delivering your presentation may be stressful but it will also make you feel great when you’re finished
Keep Your Audience Engaged During Your Presentation
Our last tip is to keep your audience engaged throughout your presentation. This will help your fellow classmates to better retain the information you’re sharing in your slides and can even help you feel more confident as you present.
A few tips for engaging your audience include:
- Avoid using a monotonous tone; instead, tell stories, speak conversationally, and hold your audience’s attention
- Try not to say things like, “um,” “er,” “like” and similar terms
- Focus on keeping good posture throughout
- Avoid chewing gum, fidgeting or doing other things that will detract from your speech
- Make eye contact with your audience rather than staring at your notes or your slides
Create Beautiful Presentations with Visme
Here at Visme, we love helping students create better presentations.
We have resources on how to use presentation templates, how to design slides from scratch, how to maintain consistency between slides, how to present data visually and how to successfully present to an audience.
Here are some articles to help you design and deliver your presentation:
- Presentation Success Formula: How to Start Strong and End Powerfully
- 100+ Creative Presentation Ideas That Will Delight Your Audience
- 7 Ways to Structure Your Presentation to Keep Your Audience Wanting More
Once you’re ready to start designing, just open up the Visme dashboard and select one of the many presentation templates. You can also create a presentation from scratch; there are lots of tools to help you out along the way.
We hope you were able to find the perfect presentation topic idea for your presentation on this list! Let us know how you did and link to your presentation in the comments.
Create beautiful presentations faster with Visme.
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Orana is a multi-faceted creative. She is a content writer, artist, and designer. She travels the world with her family and is currently in Istanbul. Find out more about her work at oranavelarde.com
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In-Text Citation or Reference List?
Handouts distributed in class and presentation slides such as PowerPoint should be cited both in-text and on the Reference list.
Your own notes from lectures are considered personal communications in APA style. They are cited within the text of your assignment, but do not get an entry on the Reference list.
Presentation Slides from a Website
Author, A. A. (Year, Month Date). Title of presentation [Lecture notes, PowerPoint Slides, etc.]. Publisher. URL
Kunka, J. L. (n.d.). Conquering the comma [PowerPoint presentation]. Purdue Online Writing Lab. http://owl.english.purdue.edu/workshops/pp/index.html#presentations
Presentation Slides from WebCampus (Canvas)
Instructor, I. I. (Year Presentation Was Created). Title of presentation [PowerPoint presentation]. WebCampus. URL
Graham, J. (2013). Introduction: Jean Watson [PowerPoint presentation]. WebCampus. https://unr.instructure.com/login/canvas
Note : The first letter of the word Watson is capitalized as it is part of a person's name.
Class Handouts from WebCampus (Canvas)
Instructor, I. I. (Year Handout Was Created if known). Title of handout [Class handout]. WebCampus. URL
Magowan , A. (2013). Career resources at the library [Class handout]. WebCampus. https://unr.instructure.com/login/canvas
Class Handout in Print
Instructor, I. I. (Year Handout Was Created if known). Title of handout [Class handout]. University Name, Course code.
Wood, D. (2013). Laboratory safety overview [Class handout]. University of Nevada, Reno, BIO173.
Class Lectures (Notes from)
Note : Your own notes from a lecture are considered personal communications in APA style. They are cited within the text of your assignment, but do not get an entry on the Reference list. Put the citation right after a quote or paraphrased content from the class lecture.
(I. I. Instructor who gave lecture, personal communication, Month Day, Year lecture took place)
"Infections are often contracted while patients are recovering in the hospital" (J. D. Black, personal communication, May 30, 2012).
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Class-VII - Mathematics - Simple Equation
- Qualification: B.Ed
- Teaches: Science, Mathematics, EVS, All Subjects
- Contact this tutor
This PPT is all about Simple Equation of class 7 from CBSE Maths book.It have the detailed explanation about what are simple equations ? And how to set up an equation? How to form a sentence from equation and vice versa. Also solving the equations by balancing and transposing.For better understanding, the topic is well described by animated calculation in pictorial figure with detailed explanation.
- 1 Support Vision Creativity class-7 Mathematics Simple Equation By: Seema Singh
- 2 Creativity CONTENTS TO BE COVERED Equation Constants & Variables Forming an equation Solving an equation Understanding transpose 7/13/2020 Seema Singh (Mathematics) Class -7 Simple Equation
- 3 Creativity INTRODUCTION —Seema ingh 7/13/2020 (Mathematics) Class - Simple Equation
- 4 Creativity WHAT IS AN EQUATION? An equation is formed when two expressions are equal to each other . An equation helps us in finding the unknown quantity in the expression. Value of expression on LHS is always equal to value of expression RHS. It doesn't change if the expression are Equation I 4x+5= 25 interchanged. Seema Singh 7/13/2020 (Mathematics) Class -7 Simple Equation
- 5 Creativity CONSTANTS & VARIABLES Constants: A constant term is a term in an algebraic expression that has a value that is constant or cannot change, because it does not contain any modifiable variables. For example, in the quadratic polynomial. the 3 is a constant term Variables : A variable is a quantity that may change within the context of a mathematical problem or experiment. Typically, we use a single letter to represent a variable. The letters x, y, and z Constants Variables 7/13/2020 (Mathematics) Class -7 Simple Equation
- 6 Creativity SETTING UP AN EQUATION In the above video we seen that a boy was asked by his friend to think of any number. Then his friend asked him to multiply the number he thought with 4. Later on he was asked to add five to it(the number he got on multiplying with 4). Then his friend asked him what answer he got, the friend replied 65. So the equation with this description formed is 4x + 5 =65 Lets put the different value of x ie x: +5=25 x=15 4*15 +5 = 65 Seema Singh 7/13/2020 (Mathematics) 1, 2, 3, 11, 100 Class -7 Simple Equation
- 7 Creativity FORMING EQUATION FROM STATEMENT Equations can also be formed from the statements. Example, The sum of 3 times x and 11 is 32. So we can write it as: 3 times x = 3x Sum of 3 times x and 11 = 3x+11 Sum of 3 times x and 11 is 32 = 3x +11 -32 So the equation formed is 3x + 11 =32 Seema Singh 7/13/2020 (Mathematics) Simp Clas -7 quatlon
- 8 Creativity FORMING STATEMENT FROM AN EQUATION Statement can also be formed from the given equation. Example, x-5=9 So we can write the statement as : Takinq away five from x qives 9 5p=20 So we can write the statement as : 5 times of a number p is equal to 20 Seema Singh 7/13/2020 (Mathematics) Class Simple Equation
- 9 Creativity SOLVING AN EQUATION A balanced equation is like a weighing machine with equal weights on its both the pan .That is if we add same weight on both the pan the arms remains horizontal. Similarly if we remove if we remove same weight from both the pan the arms remains horizontal. Similarly in an equation if we add or subtract the same number from both the sides, the equation remains unchanged. Case is same in multiplication and division too. Seema Singh 7/13/2020 (Mathematics)
- 10 Creativity EXAMPLE OF SOLVING OF EQUATION Lets take an example : x +3=8 Now we shall subtract 3 from both the sides (on subtracting 3 the equation on LHS is reduced to x), ie x +3-3=8-3 We can check the answer by putting the value of x as 5, so we get 5 + 3 = LHS = RI-IS . Hence our value of x is correct. Seema Singh 7/13/2020 (Mathematics) —Clas Simple Equation
- 11 Creativity EXAMPLE OF SOLVING OF EQUATION Lets take an example : = 35 Now we shall divide 5 from both the sides (on dividing 5 the equation is reduced to y), ie 5y/5=35/5 We can check the answer by putting the value of 5y=35 y as 7, so we get 5 x 7 =35 => 35 = LHS = RHS . Hence our value of y is correct. Seema Singh 7/13/2020 (Mathematics) 35 Class -7 Simpl —Equatio
- 12 Creativity EXAMPLE OF SOL Lets take an example : 12p-5 = 25 Now we shall add 5 on both the (on adding 5 the equation is reduced to 12p), ie 12p-5+5= 25 +5=12p = 30 Now we divide from both the 12 (on dividing 12 the equation is reduced to p), ie = 12p = 30 /12 p: 30 /12 p: 5/2 ING OF EQUATION 12/-5:25 sides sides We can check the answer by putting the value of p as 5 / 2, so we get 12 /2-5 = 25 60/2-5 = 25 50 25 25 LHS = RI-IS . Hence our value of p is correct. 7 13 2020
- 13 Creativity TRANSPOSE Transpose means transferring / changing the side of the number in the equation. 12p- -25 We have an equation 12p— 5 = 25 On transposing 5 ie changing the side from LHS to RHS we get, 12p = 25 + 5 = 30 p = 30/12 Seema Singh 7/13/2020 (Mathematics) Class -7 Simple Equation
- 14 Creativity LETS BRUSH UP WITH AN EXAMPLE Raju's father's age is 5 years more than three times Raju's age. Find Raju's age, if his father is 44 years old. Seema Singh 7/13/2020 Mathematics) -7 e Equation 14 Sim
- 15 Creativity CLOSURE Let us summarize what we have learnt: 7/13/2020 Seema Singh Class -7 (Mathematics) 15 Simple Equation
- 16 7/13/2020 Seema Singh Creativity Class -7 (Mathematics) 16 Simple Equation
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PPT Class 7th Science Chapter- 17 Forests - Our Lifeline
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Chapter- 17 Forests - Our Lifeline Class 7th ppt. This Chapter is taken from NCERT Class 7th Science textbook. This ppt is only for Class 7th students.
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- 1. Chapter - 17 Forests : Our Lifeline Presented by: Swayam R. Khobragade
- 2. 1) Forest :- Forest is a natural habitat for many different kinds of plants and animals. Forests provide food and shelter for animals. Some common animals found in a forest are :- lion, tiger, elephant, monkey, deer, zebra, jackal, bison, boar, snake, porcupine, crocodile etc. Some forest animals
- 3. ● Some common types of plants found in forests are trees like: teak, bamboo, fig, saal, sheesham, semal, neem, palash, khair, amla, kachnar etc. Forests also have several kinds of shrubs, herbs and grasses, climbers, creepers etc. Some trees found in the forests.
- 4. 2) Products we get from forests :- We get several useful products from forests like wood, spices, gum, oils, honey, sealing wax, catechu, fodder for animals, medicinal plants etc. Forest products
- 5. 3) Characteristics of trees in forests :- The branchy part of a tree above the stem is called the crown of the tree. The crown of trees have different shapes. The branches of tall trees look like a roof over the other plants in the forest. This is called a canopy. Trees have different heights, crowns, shapes of leaves, flowers and fruits. Some crown shapes of trees.
- 6. 4) Interdependence of components of forest :- Forest has different types of plants and animals. They are autotrophs, heterotrophs, saprotrophs and decomposers. Autotrophs:- are green plants which prepare food by photosynthesis. Heterotrophs:- are animals which get their food directly or indirectly from plants. Saprotrophs:- are animals which feed on dead animals. Decomposers:- are microorganisms which decompose dead plants and animals into humus. Food chain:- Organisms which feed on plants are eaten by other organisms and so on to form food chains. Eg : Grass Insects Frog Snake Eagle There are many food chains in the forest. All food chains are linked together. If any food chain is disturbed, it affects other food chains. Every component of forest depends on one another. If we remove one component like trees, all the other components are affected. eaten by eaten by eaten by eaten by
- 7. Interrelationship of plant, soil and decomposers in a forest
- 8. 5) Balance of oxygen and carbon dioxide in the atmosphere :- Oxygen During respiration plants and animals take in oxygen and release carbon dioxide. During photosynthesis plants take in carbon dioxide and release oxygen. So plants help to maintain the oxygen and carbon dioxide balance in the atmosphere. This is why forests are called green lungs.
- 9. Balance of oxygen and carbon dioxide
- 10. 6) Importance of forests :- i) Forest is a natural habitat for a large number of plants and animals. ii) Forest help in maintaining the oxygen and carbon dioxide balance in the atm atmosphere. iii) Forests help in bringing good rainfall. iv) Forest help to protect soil from erosion. v) Forest absorb rainwater and helps to maintain water table. vi) We get medicinal plants, timber and many other useful products from fore forests. vii) Many people live in forests and forest provide them with food, water, shelt shelter and medicines.
- 11. ★ What would happen if forest disappears? If forest disappear the following changes occurs: i) The amount of carbon dioxide in air will increase, resulting in the solid increase of earth’s temperature. ii) In the absence of trees and plants, the animals will not get food and and shelter. iii) In the absence of trees, the soil will not hold water, which will cause floods floods. iv) Deforestation will endanger our life and environment.
- 12. ❏ Let's Revise 1. We get various products from the forests surrounding us. 2. Forest is a system comprising various plants, animals and microorganisms. 3. In a forest, trees form the uppermost layer, followed by shrubs. The herbs form the lowest layer of vegetation. 4. Different layers of vegetation provide food and shelter for animals, birds and insects. 5. The various components of the forest are interdependent on one another. 6. The forest keeps on growing and changing, and can regenerate. 7. In the forest, there is interaction between soil, water, air and living organisms. 8. Forests protect the soil from erosion. 9. Soil helps forests to grow and regenerate. 10. Forests are the lifeline for the forest-dwelling communities. 11. Forests influence climate, water cycle and air quality.
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Class 7 Maths Visualising Solid Shapes Exercise 15
NCERT Solutions for Class 7 Maths is a must for CBSE class 7 students. Math is one such subject that requires constant attention. We at Physics Wallah have maths experts on our team. The students are provided with accurate, precise, and effective NCERT Solutions for Class 7 Maths.
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Class 7 Maths Visualising Solid Shapes Exercise 15.4 NCERT Solutions for Class 7 Maths is a must for CBSE class 7 students. Math is one such subject that requires constant attention. We at Physics Wallah have maths experts on our team. The students are provided with accurate, precise, and effective NCERT Solutions for Class 7 Maths. The team at Physics Wallah deeply understands the requirement of NCERT questions given in the textbook exercise for Class 7 Maths and its need. For all other subjects NCERT solutions you can check out our full NCERT solutions prepared by experts. NCERT Solutions Class 7 Maths Chapter 15 Visualising Solid Shapes Symmetry Exercise-15.4 NCERT Solutions Class-7 Maths chapter-15 Visualising Solid Shapes Exercise-15.4 is prepared by an academic team of Physics Wallah all the questions in the NCERT textbook are solved step by step with proper and detailed solutions explaining each and every question. For More and additional questions about CBSE class 7 maths, you can go to class 7 maths sections. NCERT Class 7 Maths Solutions is the best way to enhance your mathematics skill. And Physics Wallah practice worksheet & question bank will help you a lot.
Solutions of Chapter Visualizing Solid Shapes Exercise-15.4
Original source: https://www.pw.live/concepts-ncert-solutions-for-class-7-maths-chapter-15-15.4
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chapter 7 class 7
Weather climate and adaptation of animals chapter 7 of class 7 science – powerpoint ppt presentation.
- The weather of a place can be defined as the measure of its daily atmospheric conditions such as humidity, temperature, lightning events, rainfall Storms, snow and so on.
- Different elements of weather are
- Temperature
- The weather of a place is never constant. It can alter every day or even every hour. For instance, the weather might be sunny in the morning in an area but really in the evening.
- The weather report of a place always includes the minimum and maximum temperatures of the day which are measured using a minimum-maximum thermometer.
- The minimum temperature can be experienced in the morning time while the maximum temperature is experienced in the afternoon.
- To measure the rainfall of a place an instrument called the Rain Gauge is used. The rain gauge collects the rainwater of origin and has a measuring scale which determines the quantity of rainfall of that place.
- The climate of a place can be defined as the prevailing weather conditions of the place for a long period of time, for example, 25 years.
- For Example, the temperature of Rajasthan is generally high throughout the year and it does not receive much rainfall so we can say that Rajasthan is a hot and dry place.
- The climate of a place can affect the living organisms of that area.
- The animals living in a particular region adapt themselves so that they can survive the weather conditions of that place.
- The features and habits of the animals start to change as per the climate of the place.
- The area of the earth that surrounds the North Pole and the South Pole is called the Polar Region.
- The climate of the polar region is extremely cold throughout the year and receives heavy snow.
- The sun does not rise for 6 months of the year in the polar region and then It stays up for the next 6 months.
- The temperature in the polar region can be as low as - 37C.
- Most common animals found in these regions are polar bears and penguins. Other animals that can be found in polar areas are fishes, birds, oxen, musk, reindeers, fox, whales and seals.
- They have adapted themselves so that they can survive easily in these places.
- The white fur of the polar bear makes it easier for them to hide in the snow and therefore save them from predators.
- In the same way, it makes it easier for them to catch their prey.
- The polar bears have two layers of thick fur on them so that they can survive extremely cold conditions.
- The polar bears move slowly and rest a lot so that they do not get overheated because of their thick fur.
- The polar bears often swim on warm days to keep themselves cool.
- The paws of the polar bear are large and wide so that it can swim as well as walk easily in the snow.
- The polar bear can swim underwater as well because it can keep its nostrils closed for a long time.
- The strong sense of smell of polar bears makes it possible to locate its prey during such harsh weathers.
- The penguins are also white in color so that they can hide in the snow.
- They have thick skin with large fat content in their body so that they can survive the cold weather easily.
- The Penguins generally live in a crowd or nest closely so that they can stay warm.
- The Penguins have webbed feet which allow them to swim
- The birds in order to protect themselves from cold weather of the winters in the polar region often migrate from these areas to warmer places.
- They then return back after the winter season.
- For example, The Siberian crane migrates to India in Rajasthan, Haryana and some North East regions during the winter season in Siberia.
- These birds that migrate to different places during a change in weather are often called migratory birds.
- They can travel used instances of 15000 km to protect themselves from the extremely cold environment.
- Such birds migrate to the same places every year.
- The migratory birds fly very high so that the heat generated by the flight wings can be disposed of in the cold conditions.
- The migratory birds have a sense of direction so that they can travel to the same place every time.
- The migratory birds also use landmarks or follow the direction of the sun and stars to migrate.
- Some birds also use the magnetic field of the earth and find direction.
- Apart from birds, fishes, insects and mammals also migrate.
- Lion-tailed macaque is also called as beard ape and lives in the rainforest of Western Chats in India. It has silver-white mane which surrounds the head from the cheeks down to its chin which is the specific characteristic of this animal. It is called lion-tailed because its tail is like that of lion having bunch or tuft of hair at the end.
- They spend most of their time feeding in the upper canopy of trees (i.e. arboreal animal). It mainly feeds on fruits, seeds, young leaves, stems, flowers and buds. They also can eat insects present under the bark of the tree. Since, it can get sufficient food on trees. It rarely comes down on the ground and spends a major part of its life on the tree. It is a good climber with its hand and feet adapted to hold the branches of trees firmly.
- Elephant is a well-known animal of Indian tropical rainforest. These are plant eaters and are adapted in many remarkable ways to survive in tropical rainforest. These adaptations can be discussed as follows
- (i) The elephant has a long trunk which is used as nose and has a strong sense of smell. It also helps elephant to pick up the food. The long trunk is also used for breathing. It can reach up to the branches of trees and help it to eat tree leaves. It is used for sucking water from lakes or rivers (drinking).
- (ii) The elephant possesses tusks (long pointed teeth) that are used in tearing the bark of trees which theelephant loves to eat as food. It also helps elephant to fight their enemies and protecting themselves.
- (iii) The elephant has large ears that help it to hear even very soft sounds and can sense the danger. It also helps the elephant to keep it cool in the hot and humid climate of the tropical forest.
- (iv) The feet of the elephant is large and round which help it to provide good stability and prevent it from sinking into soft ground due to its heavy weight.
- The red-eyed frog lives on trees in tropical rainforest. They have sticky pads on their feet that help them to climb trees. It does not live in water and has a green back and a creamy underside. It has big and bulging bright-red eyes and it is a nocturnal. It sleeps during the day and becomes active during night and feeds on the insects present on the tree. The bulging eye of frog protects it from its predator. The sudden opening of big and bright-red eyes frightens the predator for a while and in the meantime the frog gets time to jump to a safe place. The green colour of the frog helps it to hide within the green leaves of the tree and helps it to protect from predators.
- The monkeys living in tropical rainforests have long tails for grasping branches. Their hands and feet are adapted in such a way that they can easily hold the branches of trees. The eyesight of monkeys is very good which helps them in leaping between the branches to escape from their predators. Monkeys eat fruits, seeds, leaves, root and insects as their food which is present in abundance in tropical rainforest.
- Toucan is a bird, which is found in tropical rainforest and which possesses a long strong and large beak. This bird is adapted for tropical rainforest in several ways. It is a colorful bird which possesses a strange beak. It lives most of the time in the holes of big trees.
- The long and large beak helps Toucan to reach the fruits attached to the ends of even thin branches of tree that are weak enough to support its weight. It is an adaptation of this bird to get the unreachable fruits. Its large beak also helps in temporary storage of fruits which is collected by Toucan. These possess feet that are adapted for grasping the branches of trees firmly. Toucan can change the color of its feather, so as to get mixed up with the surrounding and they are not easily noticed by predators and remain safe.
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Presentation Transcript Class 7 Maths Visualising Solid Shapes Exercise 15.4 NCERT Solutions for Class 7 Maths is a must for CBSE class 7 students. Math is one such subject that requires constant attention. We at Physics Wallah have maths experts on our team.
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