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Teams
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lifesaver
Give 15 points!
Oops!
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rocket
Go to first place!
Okay!
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shark
Other team loses 15 points!
Okay!
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thief
Give points!
5
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25
15
×
True or False? Water changes to ice at 32 degrees Celsius.
false - it's 32 degrees Fahrenheit
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25
×
Why is dry ice an example of sublimation?
Because it changes from solid to a gas skipping the liquid state.
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20
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Thermal expansion and contraction can strain bridges. Explain what is actually causing the bridge to weaken or break?
The bridge changing length straining the structural components.
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20
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How are deposition and sublimation similar?
They both involve skipping a step when changing states of matter.
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15
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What is a word that means changing from a liquid to a gas?
boiling/evaporating/vaporizing
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15
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What happens to most substances when they get colder?
They contract/particles vibrate more slowly/eventually freeze.
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15
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What is a word that means changing from a solid to a liquid?
melting
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20
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What's wrong? Matter is often conserved in a physical change?
Often should read always.
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heart
Other team wins 25 points!
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rocket
Go to first place!
Okay!
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gift
Win 20 points!
Okay!
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thief
Give points!
5
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25
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thief
Give points!
5
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20
25
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fairy
Take points!
5
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25
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rocket
Go to first place!
Okay!
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thief
Give points!
5
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25
15
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True or False? Heating or cooling will cause the volume of a substance to change.
True
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25
×
How are boiling and evaporation different?
Boiling is rapid while evaporation is slow/gradual.
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15
×
Fill in the Blank: A change of state is a _____________ change.
physical
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×
heart
Other team wins 15 points!
Oops!
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fairy
Take points!
5
10
15
20
25
×
shark
Other team loses 25 points!
Okay!
×
lifesaver
Give 20 points!
Oops!
20
×
How is ice an exception to the thermal contraction/expansion rule?
When water freezes to ice the volume increases rather than decreases.
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