Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 6th
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Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide chapter 4 - Our Environment [Latest edition]

Chapters

Class 6th Science Term 3 Answers Guide - Shaalaa.com
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Chapter 4: Our Environment

ActivityEvaluationClassroom Exercise
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Activity, Evaluation [Pages 47 - 55]

Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide Chapter 4 Our EnvironmentActivity, Evaluation [Pages 47 - 55]

Activity | Q 1 | Page 47

Think of the objects in your home. Just keep in mind, the books, toys, furniture, food materials, and even pets of your home. These living and non-living things together make your home. Look at the following picture and list out the living and non-living things, in the pond.

Activity | Q 2 | Page 52

Take a square paper. Fold its diagonals. Draw three lines in three triangles as shown in the picture.

Cut from the edge of the diagonal to the center as shown in the picture.
If you fold this triangle and paste it behind the third triangle you get a pyramidal shape.
In one of the triangles, draw images of each of the organisms in the different levels.
In another triangle write the names of the organisms. In the last triangle, write the energy level of the organism. Have a look at the following example. You must come up with different organisms!.

Evaluation | Q 3 | Page 55

Give some examples for Biodegradable and Non-biodegradable waste.

S. No. Biodegradable waste Non-biodegradable waste
1. Food Waste Plastic Bottles
2.    
3.    
4.    
5.    
Classroom Exercise [Page 62]

Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide Chapter 4 Our EnvironmentClassroom Exercise [Page 62]

Classroom Exercise | Q 1 | Page 62

Identify who am I?

I am the type of pollution caused by burning of fossil fuels like petrol or coal and the smoke of burning garbage. I float around and cause breathing problems. I am _______ pollution.

Classroom Exercise | Q 2 | Page 62

Identify who am I?

I am the type of pollution caused by loud sounds and I can cause serious damage to your ears and also affect sleep. In India, I am mainly caused by loudspeakers and the honking of air horns of cars. I am ______ pollution.

Classroom Exercise | Q 3 | Page 62

Identify who am I?

I flow from homes and farms into rivers and lakes. I kill fish and make water unfit for drinking. I am _______ pollution.

Classroom Exercise | Q 4 | Page 62

Identify who am I?

I am the type of pollution caused by using too much chemical fertilizers and pesticides by farmers. I lower the quality of soil and even move chemicals into plant parts which are eaten by people. I am _____ pollution.

Evaluation [Page 64]

Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide Chapter 4 Our EnvironmentEvaluation [Page 64]

Choose the appropriate answer

Evaluation | Q I. 1. | Page 64

Identify the fresh water ecosystem.

  • Pond

  • Lake

  • River

  • All of them

Evaluation | Q I. 2. | Page 64

Producers are ________.

  • Animals

  • Birds

  • Plants

  • Snakes

Evaluation | Q I. 3. | Page 64

It is a biodegradable waste.

  • Plastic

  • Coconut Shell

  • Glass

  • Aluminium

Evaluation | Q I. 4. | Page 64

It is an undesirable change that occurs in air and water

  • Recycling

  • Reuse

  • Pollution

  • Reduce

Evaluation | Q I. 5. | Page 64

Usage of chemical pesticides and fertilisers causes ________ pollution.

  • Air pollution

  • Water pollution

  • Noise pollution

  • None of the above

Evaluation [Page 64]

Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide Chapter 4 Our EnvironmentEvaluation [Page 64]

Fill in the blanks

Evaluation | Q II. 1. | Page 64

Primary consumers that eat plants are called _______.

Evaluation | Q II. 2. | Page 64

Temperature, light and wind are ________ factors.

Evaluation | Q II. 3. | Page 64

_______ is the process of converting waste materials into new materials.

Evaluation | Q II. 4. | Page 64

Water pollution can spread ________ diseases in man.

Evaluation | Q II. 5. | Page 64

The 3R’s are Reduce, ______, and Recycle.

Evaluation [Page 64]

Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide Chapter 4 Our EnvironmentEvaluation [Page 64]

True or False. If False, give the correct statement

Evaluation | Q III. 1. | Page 64

The Pacific ocean is an example of an marine ecosystem.

  • True

  • False

Evaluation | Q III. 2. | Page 64

Bacteria and fungi are called decomposers.

  • True

  • False

Evaluation | Q III. 3. | Page 64

Human and animal wastes are examples of non-biodegradable waste.

  • True

  • False

Evaluation | Q III. 4. | Page 64

Excessive use of pesticides leads to air pollution.

  • True

  • False

Evaluation | Q III. 5. | Page 64

In schools, waste management rules say that we should separate waste into two categories.

  • True

  • False

Evaluation [Page 64]

Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide Chapter 4 Our EnvironmentEvaluation [Page 64]

Evaluation | Q IV. | Page 64

Match the following

1. Biotic factor Terrestrial Ecosystem
2. Sewage Land pollution
3. Fertilizers Air pollution
4. Desert Water Pollution
5. Smoke Animals
Evaluation [Page 64]

Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide Chapter 4 Our EnvironmentEvaluation [Page 64]

Evaluation | Q V. 1. | Page 64

Arrange the following in a correct sequence and form a food chain

Rabbit Carrot Eagle Snake

Evaluation | Q V. 2. | Page 64

Arrange the following in a correct sequence and form a food chain

Human → Insect → Algae → Fish

Evaluation [Page 65]

Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide Chapter 4 Our EnvironmentEvaluation [Page 65]

Give very short answer

Evaluation | Q VI. 1. | Page 65

Define ecosystem.

Evaluation | Q VI. 2. | Page 65

What are the two types of ecosystems?

Evaluation | Q VI. 3. | Page 65

Write any two things that can be recycled.

Evaluation | Q VI. 4. | Page 65

What are the types of pollution?

Evaluation | Q VI. 5. | Page 65

Give one example of a food chain in an aquatic ecosystem?

Evaluation | Q VI. 6. | Page 65

What are Pollutants?

Evaluation | Q VI. 7. | Page 65

What are the pollutions caused by the objects given below?

  1. Loud Speaker
  2. Plastic
Evaluation [Page 65]

Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide Chapter 4 Our EnvironmentEvaluation [Page 65]

Give short answer

Evaluation | Q VII. 1. | Page 65

What is biodegradable waste?

Evaluation | Q VII. 2. | Page 65

How can we reduce water pollution?

Evaluation | Q VII. 3. | Page 65

Write the importance of the food chain.

Evaluation [Page 65]

Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide Chapter 4 Our EnvironmentEvaluation [Page 65]

Answer in detail

Evaluation | Q VIII. 1. | Page 65

Give two examples of how you can avoid or reduce waste?

Evaluation | Q VIII. 2. | Page 65

Write a short note on noise pollution.

Evaluation [Page 65]

Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide Chapter 4 Our EnvironmentEvaluation [Page 65]

Question based on Higher Order Thinking Skills

Evaluation | Q IX. 1. | Page 65

What would happen if an organism is removed from the food chain?

Evaluation | Q IX. 2. | Page 65

Explain the link between waste and dangerous diseases like dengue and malaria?

Evaluation [Page 65]

Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide Chapter 4 Our EnvironmentEvaluation [Page 65]

Evaluation | Q X. 1. | Page 65

See the diagram and answer the following question

Explain what is happening in the picture?

Evaluation | Q X. 2. | Page 65

See the diagram and answer the following question

What types of pollution are caused by open dumps?

Chapter 4: Our Environment

ActivityEvaluationClassroom Exercise
Class 6th Science Term 3 Answers Guide - Shaalaa.com

Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide chapter 4 - Our Environment

Tamil Nadu Board Samacheer Kalvi solutions for Class 6th Science Term 3 Answers Guide chapter 4 (Our Environment) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Tamil Nadu Board of Secondary Education Class 6th Science Term 3 Answers Guide solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Tamil Nadu Board Samacheer Kalvi textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 6th Science Term 3 Answers Guide chapter 4 Our Environment are The Environment, Classification of Animal, Ecosystem, Structure of an Ecosystem, Energy Flow in an Ecosystem, Food Chain, Food Web, Solid Waste Management, Energy Pyramid, Five R’s of Waste Management, Waste Separation Exercise, Pollution and Its Types, Air Pollution and Its Causes, Prevention of Air Pollution, Water Pollution and Its Causes, Prevention of Water Pollution, Soil Pollution, Prevention of Soil Pollution, Noise Pollution, Trophic Levels.

Using Tamil Nadu Board Samacheer Kalvi Class 6th solutions Our Environment exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Tamil Nadu Board Samacheer Kalvi Solutions are important questions that can be asked in the final exam. Maximum students of Tamil Nadu Board of Secondary Education Class 6th prefer Tamil Nadu Board Samacheer Kalvi Textbook Solutions to score more in exam.

Get the free view of chapter 4 Our Environment Class 6th extra questions for Class 6th Science Term 3 Answers Guide and can use Shaalaa.com to keep it handy for your exam preparation

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