Class 5 Exam > Class 5 Notes > Science Class 5 > Worksheet: Air and Water - 1
Class 5 Science - Air and Water - CBSE Worksheets - 1
| Table of contents |
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| Q1: Multiple Choice Questions (MCQs) |
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| Q2: True-life Applications |
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| Q3: Label the following Diagram |
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| Q4: Compare and Contrast |
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| Q5: Project/Activity-based Questions |
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Q1: Multiple Choice Questions (MCQs)
(i) What is the primary gas that makes up the atmosphere by volume?
A. Oxygen
B. Nitrogen
C. Carbon Dioxide
D. Argon
(ii) Which layer of the atmosphere do jet airplanes typically fly in?
A. Troposphere
B. Stratosphere
C. Mesosphere
D. Thermosphere
(iii) What percentage of air is composed of oxygen?
A. 78%
B. 21%
C. 0.03%
D. 1%
(iv) Which layer of the atmosphere contains the ozone layer?
A. Troposphere
B. Stratosphere
C. Exosphere
D. Mesosphere
(v) What method is used to separate soluble impurities from water?
A. Filtration
B. Sedimentation
C. Evaporation
D. Decantation
Q2: True-life Applications
(i) How does air pressure help in the functioning of a straw?
(ii) Why do we need to purify drinking water before use?
Q3: Label the following Diagram
Q4: Compare and Contrast
(i) Soluble Impurities vs Insoluble Impurities
(ii) Sedimentation vs Filtration
(iii) Stratosphere vs Troposphere
Q5: Project/Activity-based Questions
(i) Create a small model to demonstrate how the process of evaporation works.
(ii) Create a model to demonstrate how air pressure works in everyday life (e.g., using a straw).
(iii) Write a report on how air pressure is used in different everyday tools. (e.g., a medicine dropper, fountain, or lift pump)
(iv) Conduct an experiment to show that air is needed for burning.
(v) Make a simple model to show how filtration works in purifying water.
You can access the solutions to this worksheet here.
The document Class 5 Science - Air and Water - CBSE Worksheets - 1 is a part of the Class 5 Course Science Class 5.
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FAQs on Class 5 Science - Air and Water - CBSE Worksheets - 1
| 1. What is the importance of air and water for living beings? |  |
Ans. Air and water are essential for all living beings. Air provides oxygen that is necessary for respiration, which is vital for energy production in our bodies. Water is crucial for hydration, digestion, and transporting nutrients. Without air and water, life cannot be sustained.
| 2. How can we conserve water in our daily lives? | |
Ans. We can conserve water by taking shorter showers, turning off the tap while brushing teeth, fixing leaks, using a broom instead of a hose to clean driveways, and collecting rainwater for gardening. Every small effort contributes to saving this precious resource.
| 3. What are the main sources of air pollution? | |
Ans. The main sources of air pollution include vehicle emissions, industrial discharges, burning fossil fuels, agricultural activities, and waste disposal. These activities release harmful substances into the air, affecting both human health and the environment.
| 4. Why is clean water important for our health? | |
Ans. Clean water is vital for our health as it prevents waterborne diseases, aids in digestion, and helps regulate body temperature. Contaminated water can lead to serious health issues, including gastrointestinal infections, cholera, and other illnesses.
| 5. How does air quality affect the environment? | |
Ans. Poor air quality can harm the environment by contributing to climate change, damaging forests, and affecting wildlife. Pollutants can lead to acid rain, which harms plants and aquatic ecosystems. Good air quality is essential for maintaining a healthy and balanced ecosystem.
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