Team 1
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Team 2
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Teams
Name
Score
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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 20 points!
Okay!
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thief
Give points!
5
10
15
20
25
15
×
True or False. Water has a skin that allows insects to stand on the water.
False! Water doesn't have skin. It has surface tension.
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15
×
How does a parachute work? Why do people wear them when they go parachuting?
When the parachute opens, the air resistance is greater than the gravity. This slows the person down and allows them to land safely.
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15
×
Why does rubbing your hands together warm them up?
friction!
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trap
No points!
Oops!
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gift
Win 5 points!
Okay!
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rocket
Go to first place!
Okay!
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banana
Go to last place!
Oops!
15
×
Give me two examples of friction in action!
.
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15
×
Is your weight the same in every planet of our Solar System? How about your mass?
Your weight is different, because it depends on the gravity. Your mass is the same!
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15
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How do we know if an object will sink or float in water?
to float, an object has to be less dense than water.
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15
×
What is a friction burn?
Burns caused by friction working at high speeds.
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15
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What is mass?
the amount of matter in something
pushes and pulls
the force that attracts things towards Earth
when one surface or object rubs against another
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15
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Friction happens because most surfaces are completely smooth. True or false?
False! Most surfaces are not completely smooth. You just need a microscope to see it.
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15
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Can water surface tension support our weight?
No! It can only support a little bit of weight.
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15
×
What would happen if friction didn't exist.
We would all be slipping and sliding.
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banana
Go to last place!
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gift
Win 25 points!
Okay!
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gift
Win 5 points!
Okay!
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lifesaver
Give 25 points!
Oops!
15
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How does friction cause heat?
When surfaces get rubbed together, the molecules start moving faster. This movement causes the material to get hotter.
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15
×
What is a force?
when one surface or object rubs against another
the amount of matter in something
pushes and pulls that change the motion of objects
the amount of matter in something
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