Let's solve the worksheet step by step using the words provided in the box:
Words from the box:
- Water vapour
- 1g/cm³
- 0°C
- Condensation
- Ice
- Liquid
- Evaporation
- Universal
- 100°C
- Less
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Now, let's fill in each blank with the correct word:
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1. Water in solid state is ________
→
Ice
*Explanation:* When water freezes, it becomes solid ice.
✔ Answer: Ice
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2. Water at room temperature is in ________ state
→
Liquid
*Explanation:* At room temperature (around 20–25°C), water exists as a liquid.
✔ Answer: Liquid
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3. Water in gaseous state is called ________
→
Water vapour
*Explanation:* When water evaporates or boils, it turns into a gas known as water vapour.
✔ Answer: Water vapour
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4. Density of water is ________
→
1g/cm³
*Explanation:* The density of pure water at 4°C is approximately 1 gram per cubic centimeter.
✔ Answer: 1g/cm³
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5. An object floats when the density of an object is ________ than the density of water
→
Less
*Explanation:* Objects float on water if their density is less than that of water (1 g/cm³).
✔ Answer: Less
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6. ________ is the process in which water changes from liquid to gas
→
Evaporation
*Explanation:* Evaporation is the process where liquid water turns into water vapour (gas) at temperatures below boiling point.
✔ Answer: Evaporation
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7. ________ is when water changes from gas to liquid
→
Condensation
*Explanation:* Condensation is the process where water vapour cools and turns back into liquid.
✔ Answer: Condensation
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8. Boiling point of water is ________
→
100°C
*Explanation:* At standard atmospheric pressure, water boils at 100°C.
✔ Answer: 100°C
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9. Freezing point of water is ________
→
0°C
*Explanation:* Water freezes and turns into ice at 0°C.
✔ Answer: 0°C
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10. Water is an ________ solvent
→
Universal
*Explanation:* Water is called the "universal solvent" because it dissolves more substances than any other liquid.
✔ Answer: Universal
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✔ Final Answers:
1.
Ice
2.
Liquid
3.
Water vapour
4.
1g/cm³
5.
Less
6.
Evaporation
7.
Condensation
8.
100°C
9.
0°C
10.
Universal
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Parent Tip: Review the logic above to help your child master the concept of water properties worksheet.
