Mention two factors that affect rate of dissolving.
Heating and stirring.
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15
The process when all the particles in the liquid have enough energy to become a gas is .....
Boiling
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15
Evaporation can occur at any temperature, but most liquids boil when they are .....
heated
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trap
No points!
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gift
Win 20 points!
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rocket
Go to first place!
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banana
Go to last place!
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15
What is thermal conductor?
Materials that conduct heat
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15
Anton making 2 glasses of sweet tea but he uses different temperature of water. In the first glass, the water is 40 degree C. In the second glass the water is hotter. In which glass will the sugar dissolve faster?
second glass, because the temperature is higher.
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15
When something changes and it can turn back. we call it .............. change.
reversible
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banana
Go to last place!
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fairy
Take points!
5
10
15
20
25
shark
Other team loses 15 points!
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banana
Go to last place!
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15
Temperature at which particles throught a liquid have enough energy to change to a gas is .....
boiling point
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15
When oxygen reacts with glucose, it will produce carbon dioxide and water. What are the reactants of the reaction?
Oxygen and glucose
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15
Ms Yaya uses vinegar and baking soda to make bubbles (carbon dioxide). What are the reactant in the reaction?
vinegar and baking soda
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15
Liquids change to gases when they boil and evaporate. True or false?
True
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15
Plastic, wood, and paper are conductor. True or false?
False, they are insulator.
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15
The process when particles on the surface of a liquid change into a gas is called .....