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15
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When the water evaporates, the salt left behind forms .....
crystals
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15
×
What is the meaning of hypothesis?
It's an assumption or idea that is proposed for the sake of argument so that it can be tested.
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15
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What kind of matter is honey?
liquid
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15
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What kind of matter is wind?
gas
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15
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What kind of matter is a book?
solid
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20
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What is "stir"?
To mix somethingby moving an object such as a spoon in a circular pattern.
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lifesaver
Give 25 points!
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star
Double points!
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rocket
Go to first place!
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thief
Give points!
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25
25
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How can you make the water evaporate quickly?
You boil the water until it dries up.
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25
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How many kinds of matter are there?
3
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25
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Why can we get the salt back after boilng salt water?
The water all evaporates.
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15
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What is the hypothesis of how salt crystals are formed?
They grow in the ocean.
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25
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What is "evaporate"?
A liquid changes to a gas.
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boom
Lose 50 points!
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seesaw
Swap points!
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gift
Win 5 points!
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lifesaver
Give 5 points!
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25
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What happens when we boil water?
The water evaporates.
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eraser
Reset score!
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magnet
Take 25 points!
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fairy
Take points!
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25
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banana
Go to last place!
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25
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What is "boil"?
To cook water or to cook something in water.
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