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Class 5 Science - Air and Water - CBSE Worksheets - 2

Q1: Fill in the Blanks


(i) Air is a _______ of gases.
Class 5 Science - Air and Water - CBSE Worksheets - 2

(ii) _________ is the most common gas in the air. 

(iii) The process of taking in air containing oxygen into the body and giving out carbon dioxide is called _______.

(iv) The layer of gases surrounding the Earth is known as the ________.
Class 5 Science - Air and Water - CBSE Worksheets - 2

(v) _______ is the process by which water changes into water vapour.

Q2: Match the Column

Match the items in Column A with their respective descriptions in Column B.Class 5 Science - Air and Water - CBSE Worksheets - 2

Q3: True or False

(i) Air is composed of only one gas.

(ii) All living organisms need air to survive.

(iii) The ozone layer protects us from the harmful ultraviolet rays of the sun.

(iv) Ice is an example of water in the liquid state.
Class 5 Science - Air and Water - CBSE Worksheets - 2

(v) Plants release oxygen during photosynthesis.

Q4: Arrange in Correct Order

Arrange the following steps in the correct order to explain the water cycle.
(a) Precipitation
(b) Evaporation
(c) Condensation
(d) Collection
(e) Runoff

Q5: Choose the Odd One Out

(i) Nitrogen, Oxygen, Water Vapour, Carbon Dioxide
Class 5 Science - Air and Water - CBSE Worksheets - 2

(ii) Lake, River, Pond, Glacier

(iii) Respiratory System, Circulatory System, Digestive System, Solar System

(iv) Boiling, Freezing, Melting, Precipitation
Class 5 Science - Air and Water - CBSE Worksheets - 2

(v) Atlantic, Pacific, Indian, Earth

Q6: Short Answer Questions

(i) What is the atmosphere, and what is its function?

(ii) What is the troposphere?

(iii) What is the importance of the ozone layer?

(iv) Why is water called the "universal solvent"?

(v) What are the two main ways to remove insoluble impurities from water?

The solutions of the worksheet "Air and Water - 2"

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FAQs on Class 5 Science - Air and Water - CBSE Worksheets - 2

1. What is the importance of air and water for living organisms?
Ans.Air and water are essential for all living organisms. Air provides oxygen, which is crucial for respiration in animals and plants. Water is necessary for hydration, nutrient transport, and various biochemical processes. Without air and water, life cannot sustain itself.
2. How does pollution affect air and water quality?
Ans.Pollution can severely impact both air and water quality. Air pollution from vehicles, factories, and burning waste can lead to health problems and environmental damage. Water pollution from industrial waste, sewage, and agricultural runoff can contaminate drinking water sources, harm aquatic life, and disrupt ecosystems.
3. What are the main sources of air and water pollution?
Ans.Main sources of air pollution include vehicle emissions, industrial discharges, burning fossil fuels, and household cleaning products. For water pollution, common sources are agricultural runoff, sewage disposal, industrial waste, and plastic waste that ends up in rivers and oceans.
4. How can we conserve air and water resources?
Ans.We can conserve air and water resources by reducing waste, recycling materials, using public transport, and planting trees to improve air quality. For water conservation, we can fix leaks, use water-saving fixtures, and collect rainwater for gardening, ensuring that we use water wisely and efficiently.
5. What are some ways to improve air and water quality in our communities?
Ans.To improve air and water quality, communities can promote clean energy sources, such as solar and wind power, enforce regulations to reduce emissions, and conduct regular water quality testing. Additionally, community clean-up events can help remove trash from natural water bodies, and educational programs can raise awareness about the importance of protecting our environment.
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