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WorksheetsChanging States
Total questions: 22
Worksheet time: 11mins
What changes in state take place at the following temperatures when water gains heat:
(a) 0℃
(b) 100℃
(a) Boiling
(b) Melting
(a) I don't know
(b) I don't know
(a) Melting
(b) Boiling
(a) Boiling or Melting?
(b) Melting
Rupa filled half a pot with water to boil.
(a) She saw many bubbles in the water while it was boiling. She said these bubbles were made up of air. Was she right?
(b) When Rupa stopped heating the boiling water, the pot was less than half full. Explain what happened.
(a) Yes
(b) The water rised and escaped into the surrounding air.
(a) No
(b) Steve from Minecraft took it.
(a) Not sure
(b) Not sure
Devi usually leaves her hair to dry on its own after washing it. When she wants to dry it quickly, she uses a hairdryer
(a) Why does her hair dry on its own after some time?
(b) Why does using a hairdryer help her dry her hair more quickly?
(a) The water evaporated
(b) The heat from the hairdryer evaporates the water more faster
(a) Sam Hain took it
(b) Sam Hain is fast so he could take the water very fast.
The boiling point of water is .....
10 degree Celcius
1000 degree Celcius
100 degree Celcius
0 degree Celcius
The change of liquid into gas is called (a)
The change of solid into liquid is called ....
freezing
melting
evaporation
condensation
The melting point of ice is ....
10 degree Celcius
110 degree Celcius
0 degree Celcius
-0 degree Celcius
Condensation is the process from a matter from ... into ...
gas into liquid
gas into solid
liquid into gas
liquid into solid
Another name of water vapour is (a)
Water vapour is water in ... state.
(a)
Evaporation is the process when liquid ... heat.
(a)
When a solid dissolve in a liquid, a ... is formed.
solusi
matter
liquid
solution
A solid that can dissolve in a liquid is called ....
soluble
unsoluble
Water vapour condenses into liquid water when it loses ...
(a)
The water cycle is driven by heat energy from the ....
moon
sun
rain
rainbow
Water droplets in the sky will form a ....
thunder
clouds
rain
dust
Mist on the mirror when we take a hot shower is an example of ....
condensation
evaporation
boiling
melting
Look at the table! From the table, we conclude that evaporation is the same thing as boiling
True
False
Living things give off water vapour.
True
False
Water droplets in clouds will fall as bubbles.
True
False
Wet clothes dry more quickly when they are folded.
True
False
Without water cycle, we still be able to survive.
True
False
