Team 1
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Team 2
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Teams
Name
Score
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×
baam
Lose 25 points!
Oops!
×
gift
Win 5 points!
Okay!
×
rocket
Go to first place!
Okay!
×
banana
Go to last place!
Oops!
×
eraser
Reset score!
Oops!
×
rocket
Go to first place!
Okay!
×
gift
Win 20 points!
Okay!
×
thief
Give points!
5
10
15
20
25
15
×
Which result shows that a fair test has been carried out?
Only one variable is changed
No measurements are taken
All variables are changed
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Check
15
×
Why should the same heat source be used when comparing boiling times?
To cool the water
To keep the test fair
To change the boiling point
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Check
Okay!
Check
15
×
What effect does adding salt have on ice in an investigation?
It stops melting completely
It lowers the melting point of ice
It raises the melting point
Oops!
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Check
Okay!
Check
×
thief
Give points!
5
10
15
20
25
×
star
Double points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
banana
Go to last place!
Oops!
15
×
Why should a lid not be tightly closed when heating water?
To make water boil faster
To allow steam to escape safely
To stop evaporation
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15
×
What observation shows water is close to boiling?
The temperature drops suddenly
Ice forms in the water
Small bubbles form at the bottom
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15
×
What happens to water particles when water boils?
They gain energy and move far apart
They lose energy and slow down
They stop moving
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Check
×
lifesaver
Give 25 points!
Oops!
×
gift
Win 20 points!
Okay!
×
gift
Win 10 points!
Okay!
×
baam
Lose 15 points!
Oops!
15
×
What does a flat line on a temperatureâtime graph during melting show?
The temperature increases quickly
The temperature stays constant during melting
The ice cools down
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15
×
At what temperature does pure ice begin to melt?
0°C
100°C
50°C
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15
×
Which variable should be kept the same to make an ice melting investigation fair?
The amount of ice used
The temperature recorded
The time taken to melt
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Check
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Check
15
×
What change of state occurs when boiling water becomes steam?
Gas to liquid
Liquid to gas
Solid to liquid
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15
×
What is the boiling point of pure water at sea level?
100°C
0°C
50°C
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15
×
What happens to the temperature just before ice starts to melt?
It rises to 0°C
It falls below 0°C
It stays at room temperature
Oops!
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Okay!
Check
×
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