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Science Class 7 - Natural Resources-And-Their-Conservation Notes

Comprehensive study notes for Class 7 - Natural Resources-And-Their-Conservation olympiad preparation

Natural Resources and Their Conservation

Welcome to the chapter on Natural Resources and Their Conservation for Class 7. In this chapter, you will learn about different natural resources, why they are important, and how we can conserve them for the future. By the end of this chapter, you will understand the need to protect our environment and use resources wisely!

Introduction

Natural resources are things we get from nature, like water, air, soil, plants, animals, minerals, and sunlight. We use these resources every day for drinking, eating, building, and making energy. Some resources can run out if we are not careful, so we must conserve them.

Types of Natural Resources

  • Renewable Resources: Resources that can be replaced or used again, like sunlight, wind, and water.
  • Non-renewable Resources: Resources that cannot be replaced easily, like coal, oil, and minerals.

Importance of Natural Resources

  • We need water to drink and grow crops.
  • Air is needed for breathing.
  • Plants give us food, oxygen, and medicines.
  • Minerals are used to make tools, buildings, and machines.
  • Sunlight gives us energy and helps plants grow.

Why Should We Conserve Natural Resources?

  • Some resources can run out if we waste them.
  • Conservation helps protect the environment.
  • Future generations will need these resources too.
  • Conserving resources saves money and energy.

Ways to Conserve Natural Resources

  • Use water carefully. Do not waste it.
  • Plant more trees and protect forests.
  • Use renewable sources of energy like solar and wind.
  • Recycle and reuse materials like paper, plastic, and metal.
  • Switch off lights and fans when not in use.
  • Do not pollute air, water, or soil.

Fun Activity: Conservation Pledge

Make a pledge with your friends and family to save water, plant trees, and recycle waste. Write your pledge and put it up at home!

Summary

  • Natural resources are important for life and development.
  • We must conserve resources for ourselves and future generations.
  • Simple actions can help save resources and protect the environment.

Practice Questions

  1. Name two renewable and two non-renewable resources.
  2. Why is it important to conserve water?
  3. List three ways to save energy at home.
  4. How does planting trees help conserve resources?
  5. What can you do to reduce pollution?

Challenge Yourself

  • Make a poster showing ways to conserve natural resources.
  • Write a short paragraph on why conservation is important.

Did You Know?

  • Recycling one ton of paper saves about 17 trees!
  • Solar energy is clean and never runs out.

Glossary

  • Natural Resource: Anything we get from nature.
  • Conservation: Saving and protecting resources.
  • Renewable: Can be replaced or used again.
  • Non-renewable: Cannot be replaced easily.
  • Recycle: Use again after processing.

Answers to Practice Questions

  1. Renewable: sunlight, wind; Non-renewable: coal, oil.
  2. Because water is needed for drinking, farming, and daily use, and it can run out if wasted.
  3. Switch off lights, use energy-saving bulbs, unplug devices when not in use.
  4. Trees give us oxygen, keep air clean, and prevent soil erosion.
  5. Do not litter, use less plastic, plant trees, and use public transport.

Conserve natural resources to protect our planet for the future!

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