Class 1 Exam > Class 1 Videos > Science for Class 1 > Air Around Us
Air Around Us Video Lecture | Science for Class 1
|
17 videos|89 docs|24 tests
|
FAQs on Air Around Us Video Lecture - Science for Class 1
| 1. What is air and why is it important? |  |
Ans. Air is the mixture of gases that surrounds the Earth. It consists mainly of nitrogen (78%) and oxygen (21%), with traces of other gases. Air is important because it is essential for the survival of all living organisms. It provides oxygen for us to breathe, helps in regulating the Earth's temperature, and supports the water cycle.
| 2. How is air polluted and what are the effects of air pollution? | |
Ans. Air can be polluted by various sources such as industrial emissions, vehicle exhaust, and burning of fossil fuels. The pollutants released into the air can have harmful effects on both the environment and human health. Air pollution can lead to respiratory problems, cardiovascular diseases, and even contribute to climate change.
| 3. How does air circulate around the Earth? | |
Ans. Air circulates around the Earth due to the uneven heating of the Earth's surface by the Sun. The warm air near the equator rises, creating a low-pressure area, while the cooler air near the poles sinks, creating a high-pressure area. This pressure difference causes air to move from high-pressure areas to low-pressure areas, creating wind patterns.
| 4. How does air help in the water cycle? | |
Ans. Air plays a crucial role in the water cycle. When the Sun heats the surface of the Earth, it causes water to evaporate, turning it into water vapor. This water vapor rises into the atmosphere and condenses to form clouds. Eventually, the condensed water droplets fall back to the Earth as precipitation, such as rain or snow, completing the water cycle.
| 5. Can air be compressed or expanded? | |
Ans. Yes, air can be compressed or expanded. Air is made up of molecules that are constantly moving and colliding with each other. When air is compressed, the molecules are forced closer together, resulting in a decrease in volume. On the other hand, when air is expanded, the molecules move farther apart, causing an increase in volume.
Related Exams
About this Video
|
1.9K Views |
|
4.76/5 Rating |
|
Dec 22, 2024 Last updated |
Video Description: Air Around Us for Class 1 2024 is part of Science for Class 1 preparation.
The notes and questions for Air Around Us have been prepared according to the Class 1 exam syllabus.
Information about Air Around Us covers all important topics for Class 1 2024 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Air Around Us.
Introduction of Air Around Us in English is available as part of our Science for Class 1 for Class 1 & Air Around Us in
Hindi for Science for Class 1 course. Download more important topics related with notes, lectures and mock test series for
Class 1 Exam by signing up for free.
Description
Video Lecture & Questions for Air Around Us Video Lecture | Science for Class 1 - Class 1 full syllabus preparation | Free video for Class 1 exam to prepare for Science for Class 1.
Information about Air Around Us
Here you can find the meaning of Air Around Us defined & explained in the simplest way possible.
Besides explaining types of Air Around Us theory, EduRev gives you an ample number of questions to practice Air Around Us tests,
examples and also practice Class 1 tests.
|
17 videos|89 docs|24 tests
|
Video Timeline
|
Explore Courses for Class 1 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
MCQs
,video lectures
,practice quizzes
,Previous Year Questions with Solutions
,Viva Questions
,Sample Paper
,Air Around Us Video Lecture | Science for Class 1
,Objective type Questions
,Extra Questions
,past year papers
,mock tests for examination
,Important questions
,Air Around Us Video Lecture | Science for Class 1
,Free
,study material
,Semester Notes
,Summary
,Exam
,ppt
,shortcuts and tricks
,Air Around Us Video Lecture | Science for Class 1
;
Study Air Around Us on the App
Students of Class 1 can study Air Around Us alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Air Around Us,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Air Around Us is prepared as per the latest Class 1 syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup