Let's solve the worksheet step by step and explain each answer.
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Condensation Worksheet – Answers and Explanations
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1. The air surrounds us is made up of a _______________ of different gases, including water vapour.
✔ Answer: *mixture*
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Explanation:
The air we breathe is a mixture of gases such as nitrogen, oxygen, carbon dioxide, and water vapor. These gases are not chemically bonded but mixed together in the atmosphere.
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2. When the water vapour ____________ heat, its temperature ____________ and it changes from a gas into a ____________.
✔ Answer:
- loses
- decreases
- liquid
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Explanation:
Water vapor (gas) must lose heat energy to cool down. As it cools, its temperature decreases, and it changes state from gas to liquid — this is called condensation.
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3. This process is called _______________.
✔ Answer: *condensation*
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Explanation:
Condensation is the process where water vapor turns into liquid water when it loses heat.
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4. The water droplets on the glass below is formed when the water vapour in the air came in contact with the cold glass.
✔ This is a descriptive statement. No blank to fill here.
But it illustrates the concept: Warm moist air touches the cold surface of the glass → water vapor cools → condenses into tiny water droplets.
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5. The ____________ in the sky are formed when water vapour in the air ____________ and condenses as it rises.
✔ Answer:
- clouds
- cools
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Explanation:
As warm, moist air rises, it expands and cools. When it cools enough, the water vapor in the air condenses into tiny water droplets or ice crystals, forming
clouds.
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Diagram Explanation (Bottom of Page)
The diagram shows the water cycle:
1.
Water evaporates and changes into water vapor → Water from the surface (like lakes, oceans) turns into vapor due to heat from the sun.
2.
Water vapor cools and condenses → As the vapor rises, it cools and condenses into tiny droplets.
3.
As it condenses, it forms clouds → These droplets gather to form visible clouds.
✔ This sequence correctly explains how clouds form through evaporation, cooling, and condensation.
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✔ Final Completed Answers:
1. The air surrounds us is made up of a
mixture of different gases, including water vapour.
2. When the water vapour
loses heat, its temperature
decreases and it changes from a gas into a
liquid.
3. This process is called
condensation.
4. [Illustration explained]
5. The
clouds in the sky are formed when water vapour in the air
cools and condenses as it rises.
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This worksheet teaches the basics of
condensation, a key part of the water cycle. It connects real-life observations (like water droplets on a cold glass) to natural phenomena like cloud formation.
Parent Tip: Review the logic above to help your child master the concept of condensation worksheet.
