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Question 1 of 15
1. Question
Three things that are needed for rust to happen are __________ .
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Question 2 of 15
2. Question
What does it mean when a substance is said to be soluble?
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Question 3 of 15
3. Question
In how many different states does water exists?CorrectIncorrect -
Question 4 of 15
4. Question
Choose one correct answer in each drop-down list.
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(i) is the water in the form of a gas resulting from heating water or ice.
(ii) water which collects as droplets on a cold surface when humid air is in contact with it.
(iii) means it can dissolve things for example water can dissolve salt.
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Question 5 of 15
5. Question
Water freezes to form ice means the water losses heat.
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Question 6 of 15
6. Question
Water boils to form steam means the heat is loss.
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Question 7 of 15
7. Question
Haze is caused by condensation.
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Question 8 of 15
8. Question
Study the figure shown.
(i) Name the process Z?
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Question 9 of 15
9. Question
Study the diagram in figure below.
(ii) Name the process Y?
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Question 10 of 15
10. Question
Figure shows an ice cube placed in a box.
Which of the following statements about melting ice is correct?
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Question 11 of 15
11. Question
Match the given words with the correct statement of the experiment statement below.
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(a) Some cubes were dropped into a glass of lemonade water.
(b) After 10 minutes, the lemonade water in a glass becomes .
(c) The ice cubes would become in size.
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Question 12 of 15
12. Question
Fill in the Correct Answer.
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The change of state from liquid to solid is .
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Question 13 of 15
13. Question
Fill in the Correct Answer.
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The sand is in a glass of water.
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Question 14 of 15
14. Question
Sally has added a small amount of sugar into her hot chocolate. Choose the three correct statements for the experiment:
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Question 15 of 15
15. Question
Arrange the following items in the correct order.
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Condensation occurs.
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Water evaporates.
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Warm air rises and then cools.
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Droplets of water from clouds.
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When the water droplets become bigger, they fall as rain.
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Heat energy from the Sun warms the Earth.
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