Class 5 Exam  >  Class 5 Notes  >  Science Olympiad for Class 5  >  Notes: Pollution

Notes: Pollution | Science Olympiad for Class 5 PDF Download

Introduction

  • Imagine if your favourite playground was covered with plastic bags, the river nearby smelled bad, and the air felt thick and hard to breathe.
  • It would be tough to play and enjoy nature, right?
  • That’s what pollution does – it makes our planet sad and unhealthy.
  • But guess what? Every small action can help bring back the beauty of our world!
  • In this lesson, we will explore the different kinds of pollution and learn how we can all become Earth’s helpers.
  • Are you ready to discover how to keep our air, water, and land clean and green?
  • Let’s jump in and see how we can make a difference!

Notes: Pollution | Science Olympiad for Class 5

Question for Notes: Pollution
Try yourself:
Which of the following is an example of land pollution?
View Solution

What is Pollution?

  • Pollution happens when harmful substances are added to the environment, making it unsafe or unhealthy. 
  • It affects air, water, soil, and living things, causing damage to both nature and human health. 
  • Pollution can come from factories, vehicles, waste, chemicals, and other sources.

Types of Pollution

1. Air Pollution 

  • It is caused by industries and vehicles.
  • Air pollution refers to any physical, chemical or biological change in the air. 
  • It is the contamination of air by harmful gases, dust and smoke that affects plants, animals and humans drastically.
    Notes: Pollution | Science Olympiad for Class 5Air Pollution

2. Water Pollution 

  • It is caused by the release of household and industrial wastes into water bodies.
  • Water pollution occurs when harmful substances—often chemicals or microorganisms—contaminate a stream, river, lake, ocean, aquifer, or other body of water, degrading water quality and rendering it toxic to humans or the environment.
    Notes: Pollution | Science Olympiad for Class 5Water Pollution

3. Land Pollution 

  • It is caused by the dumping of solid wastes like polythene bags and glass bottles in the soil.
  • Land pollution, the deposition of solid or liquid waste materials on land or underground in a manner that can contaminate the soil and groundwater, threaten public health, and cause unsightly conditions and nuisances.
    Notes: Pollution | Science Olympiad for Class 5Land Pollution

4. Noise Pollution 

  • It is caused by the loud noise of machines and vehicles.
  • Noise is an unpleasant and undesirable sound that leads to discomfort in human beings.
  • Due to increasing noise around the civilizations, noise pollution has become a matter of concern.

Noise PollutionNoise Pollution

How Can We Control Pollution?

Reduce Air Pollution

  • Use public transport, bicycles, or carpools to reduce vehicle emissions.
  • Plant more trees to clean the air.
  • Avoid burning waste and switch to clean energy sources like solar and wind power.

Reduce Water Pollution

  • Do not throw garbage into rivers or seas.
  • Factories should treat their waste before releasing it into water bodies.
  • Reduce plastic use to avoid polluting oceans.

Reduce Land Pollution

  • Use organic fertilizers instead of chemical ones.
  • Recycle and reuse materials like plastic and paper.
  • Dispose of waste properly in dustbins.

Reduce Noise Pollution

  • Avoid honking unnecessarily.
  • Use silent zones near schools and hospitals.
  • Celebrate festivals with less noise by using fewer firecrackers.

Question for Notes: Pollution
Try yourself:
Which type of pollution is caused by the loud noise of machines and vehicles?
View Solution

Interesting Facts About Pollution

  • Air pollution is responsible for nearly 7 million deaths every year, according to the World Health Organization.
  • A plastic bottle can take 450 years to decompose in the soil!
  • Noise pollution can disturb animals so much that it can change their behaviour and communication patterns.
  • The Great Pacific Garbage Patch, a huge collection of floating plastic waste, is twice the size of Texas!

Conclusion

  • Pollution is a serious problem that affects everyone on Earth.
  • It impacts humans, animals, and plants.
  • It is important for each of us to take steps to reduce pollution.
  • We must protect the environment.
  • Small actions can make a big difference.
  • Actions include reducing waste.
  • Using public transport is beneficial.
  • Planting trees contributes positively.
  • Together, we can help build a cleaner, healthier, and greener planet!
The document Notes: Pollution | Science Olympiad for Class 5 is a part of the Class 5 Course Science Olympiad for Class 5.
All you need of Class 5 at this link: Class 5
36 videos|57 docs|47 tests

Top Courses for Class 5

FAQs on Notes: Pollution - Science Olympiad for Class 5

1. What is pollution and why is it harmful?
Ans.Pollution is the introduction of harmful substances or contaminants into the environment. It can be harmful because it affects air, water, and land quality, leading to health problems for humans, animals, and plants.
2. What are the main types of pollution?
Ans.The main types of pollution include air pollution, water pollution, soil pollution, noise pollution, and light pollution. Each type affects different aspects of the environment and can have various impacts on health and ecosystems.
3. How can we control pollution in our daily lives?
Ans.We can control pollution by reducing waste, recycling, using public transportation, conserving energy, and using eco-friendly products. Small changes in our daily habits can contribute to a cleaner environment.
4. What are some interesting facts about pollution?
Ans.Some interesting facts about pollution include that over 90% of the world's population lives in areas with unhealthy air quality, and plastic pollution is so severe that it is estimated to outweigh all the fish in the oceans by 2025.
5. How does pollution affect animals and plants?
Ans.Pollution can have serious effects on animals and plants, such as habitat destruction, poisoning, and loss of biodiversity. Toxic substances can accumulate in the food chain, impacting entire ecosystems.
36 videos|57 docs|47 tests
Download as PDF
Explore Courses for Class 5 exam

Top Courses for Class 5

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

ppt

,

study material

,

Objective type Questions

,

Viva Questions

,

Important questions

,

mock tests for examination

,

Free

,

MCQs

,

Notes: Pollution | Science Olympiad for Class 5

,

Notes: Pollution | Science Olympiad for Class 5

,

Exam

,

practice quizzes

,

Notes: Pollution | Science Olympiad for Class 5

,

video lectures

,

Extra Questions

,

past year papers

,

Sample Paper

,

pdf

,

Summary

,

Previous Year Questions with Solutions

,

shortcuts and tricks

,

Semester Notes

;