Nature’s Treasures Class 6 Worksheet Science Chapter 11

Class 6 Science Chapter 11 Worksheet Nature’s Treasures

Nature’s Treasures Class 6 Worksheet

A. Tick (✓) the odd one out giving a reason. (Conceptual Learning)

Question 1.
Nitrous oxide, Nitrogen, Oxygen, Carbon dioxide, and Water vapor.
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Question 2.
Coal, Petroleum, Natural gas, Forests, Minerals.
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Question 3.
Herb, Shrubs, Trees, Diesel, Forest.
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Question 4.
Coal, Wood, LPG, Dung cakes, Kerosene.
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Question 5.
Electric bulb, Solar panels, AC, Wood, Refrigerator.
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B. Multiple Choice Questions

Question 1.
Which of the following is a non-renewable resource?
(a) Air
(b) Coal
(c) Forest
(d) Underground water

Question 2.
Which of the following statements is incorrect for forests?
(a) Forests influence climate and air quality.
(b) Forests protect the soil from erosion.
(c) Forests help in creating flood conditions.
(d) Forests provide medicinal plants.

Question 3.
Which of the following is a renewable resource?
(a) Rock
(b) Petroleum
(c) Natural gas
(d) Water

Question 4.
The primary rocks like slate are commonly used for
(a) constructing buildings
(b) constructing roads
(c) constructing roof
(d) constructing tools

Question 5.
What is the percentage composition of oxygen in the air?
(a) 78%
(b) 21%
(c) 1%
(d) 8%

C. Assertion – Reason (Critical Thinking)

Two statements are given for questions 1 to 6: Assertion(A) and Reason (R). Select the correct answer to these questions from the codes (a), (b), (c), and (d) as given below:
(a) Assertion (A) and Reason (R) both are correct statements and reason is the correct explanation for assertion.
(b) Assertion (A) and Reason (R) both are correct statements and reason is not the correct explanation for assertion.
(c) Assertion (A) is a correct statement but the Reason (R) is a wrong statement.
(d) Assertion (A) is a wrong statement but the Reason (R) is a correct statement.

Question 1.
Assertion (A): Forests are called ‘green lungs’.
Reason (R): Forests release carbon dioxide during day time which is used by animals for respiration.
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Question 2.
Assertion (A): Cow and buffalo are getting energy directly from the sun.
Reason (R): Photosynthesis is a process by which green plants synthesize their food from carbon dioxide and water using solar energy.
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Question 3.
Assertion (A): The Sun is the main source of energy on the Earth.
Reason (R): Directly or indirectly we all depend on the Sun for heat, light, photosynthesis, and energy from fossil fuels.
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Question 4.
Assertion (A): Moving air is called wind.
Reason (R): A windmill farm is an area with a huge number of windmills that use the energy of the wind to generate electricity.
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Question 5.
Assertion (A): Water harvesting is an odd way of wasting water.
Reason (R): The stepwells have a unique system of water harvesting.
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Question 6.
Assertion (A): Earthworms are natural agents for maintaining the soil nutrients.
Reason (R): Earthworms help in turning and loosening the soil.
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D. Very Short Answer Questions

Question 1.
Match Column I with Column II (One option of I can match with more than one option of II).

(a) ___________________________________________________

(b) ___________________________________________________

(c) ___________________________________________________

(d) ___________________________________________________

(e) ___________________________________________________

Question 2.
Write one word/term for the following:
(a) Blowing air __________________

(b) An area with a large number of windmills for generating electricity __________________

(c) An age-old practice of conserving rainwater __________________

(d) The main source of energy on the Earth __________________

(e) The substance formed by the disintegration of rocks __________________

Question 3.
Write down two important uses of water.
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Question 4.
Mention two important uses of soil.
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Question 5.
List any five products we are getting from forests.
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Question 6.
What are human-made resources?
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Question 7.
Name two commonly used fossil fuels.
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Question 8.
What are CNG and PNG?
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Question 9.
Why is oxygen essential for human survival?
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Question 10.
What are the main components of gases present in the air?
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Question 11.
Write two uses of windmills.
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Question 12.
What are some of the essential daily activities that require water?
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Question 13.
What are the two ways to save water?
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Question 14.
Write one advantage of using step-wells for water harvesting.
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Question 15.
Write three simple uses of rocks in our daily lives.
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E. Short Answer Questions

Question 1.
Define natural resources with two examples.
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Question 2.
Define renewable resources with two examples.
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Question 3.
What are non-renewable resources? Provide two examples of non-renewable resources and explain why they are considered as non-renewable.
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Question 4.
How are fossil fuels formed in nature?
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Question 5.
What is the process by which soil is formed and how do factors like rocks, minerals, water, and living organisms contribute to its creation over thousands of years?
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Question 6.
How does the space between soil particles support plant growth, and what two essential benefits does it provide to roots?
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Question 7.
Write some ways to reduce the wastage of water.
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Question 8.
What are some common human activities, besides industrial waste and agricultural runoff, that contribute to water pollution, and how do these activities impact the quality and safety of our water resources?
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Question 9.
What are the main human activities responsible for the decline of forest cover and why is it crucial to adopt sustainable practices to preserve forests and maintain their ecological balance?
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F. Higher Order Thinking Skills (HOTS) (Critical Thinking)

Question 1.
Why is the Sun considered the ultimate source of energy?
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Question 2.
How do plants and trees contribute to the natural process of recycling in ecosystems?
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Question 3.
Why are earthworms considered a blessing to farmers?
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Question 4.
How is soil formed and what are the three main factors that contribute to the breakdown of rocks into soil over thousands of years?
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Question 5.
Why do mountaineers and climbers often carry oxygen cylinders with them at high altitudes?
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Question 6.
Why is it difficult to cook food in hilly areas?
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G. Competency/Case-Based Questions (CBQs)

The following questions are case-based. Read the case carefully and answer the questions that follow.

On International Yoga Day, we connect with nature’s bounty – air, water, forests, and soil. The energy from the Sun nourishes our planet. Rocks and minerals form the Earth’s foundation. Natural resources, like air and water, are abundant. Renewable resources, such as solar energy, can be replenished. Non-renewable resources, like fossil fuels, are finite. Forests provide oxygen and sustain life. Soil supports plant growth, while rocks store ancient secrets. Conserving these resources ensures a harmonious future. By embracing nature’s gifts, we thrive. Soil, rock, and minerals are the building blocks of our planet. Soil nurtures plant life, while rocks form the earth’s foundation. Minerals, found in rocks and soil, are the source of essential metals like iron, copper, and gold. Air pollution is a growing environmental concern that affects human health, wildlife, and the planet as a whole. The release of harmful pollutants into the atmosphere, primarily through human activities like burning fossil fuels and industrial processes, is causing irreversible damage to our ecosystem. They are formed through geological processes, taking thousands of years to create. These natural resources are vital for human existence, supporting ecosystems, and fueling industries.

Question 1.
Write two simple steps to reduce air pollution.
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Question 2.
Write two disadvantages of using fossil fuels.
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Question 3.
Why is CNG considered as a clean fuel?
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Question 4.
What are two common uses of minerals in everyday life?
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Question 5.
Name two important metals extracted from minerals.
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Curiosity Class 6 Worksheet

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