Science Class 4 - Our Environment Notes
Comprehensive study notes for Class 4 - Our Environment olympiad preparation
Our Environment
Welcome to the chapter on Our Environment for Class 4. In this chapter, you will learn what the environment is, why it is important, and how we can keep it clean and healthy. By the end of this chapter, you will understand how people, plants, animals, air, water, and land are all connected!
Introduction
The environment is everything around us—air, water, land, plants, animals, and people. A clean and healthy environment helps all living things grow and stay safe.
Parts of Our Environment
- Air: We breathe air to live.
- Water: We drink water and use it every day.
- Land: We live, play, and grow food on land.
- Plants: Give us food, oxygen, and shade.
- Animals: Live in the environment and help keep it balanced.
- People: Use and care for the environment.
Why Is the Environment Important?
- It gives us everything we need to live—air, water, food, and shelter.
- Plants and trees clean the air and give us oxygen.
- Animals and insects help plants grow and keep nature balanced.
How Can We Keep Our Environment Clean?
- Throw waste in dustbins, not on the ground.
- Do not waste water. Turn off taps when not in use.
- Plant more trees and take care of plants.
- Do not burn garbage or plastic.
- Reduce, reuse, and recycle things.
Fun Activity: Make a Clean-Up Group!
With your friends or family, clean up a small area near your home or school. Plant a tree or flower and promise to take care of it!
Summary
- The environment is everything around us.
- A clean environment keeps us healthy and happy.
- We must protect and care for our environment.
Practice Questions
- Name three things that are part of our environment.
- Why should we plant more trees?
- How can we save water?
- What should you do with waste?
- Why is a clean environment important?
Challenge Yourself
- Make a poster about saving the environment.
- List five ways you can help keep your surroundings clean.
Did You Know?
- Earth is the only planet with life because of its environment!
- Recycling one plastic bottle saves enough energy to power a light bulb for three hours.
Glossary
- Environment: Everything around us—air, water, land, plants, animals, and people.
- Recycle: To use things again in a new way.
- Pollution: Making air, water, or land dirty.
- Oxygen: The gas in air that we breathe.
Answers to Practice Questions
- Air, water, plants, animals, land, people (any three).
- Trees clean the air and give us oxygen.
- Turn off taps, fix leaks, use water carefully.
- Throw it in a dustbin or recycle it.
- It keeps us healthy and safe.
Take care of your environment every day. Small actions make a big difference!