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15
×
True or False: Muscles can push bones.
False (They can only pull).
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15
×
Which "Key Word" means the opposite of contract?
Relax.
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15
×
If a muscle is "relaxing," does it get longer or shorter?
Longer.
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monster
Reset all scores!
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rocket
Go to first place!
Okay!
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gift
Win 20 points!
Okay!
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banana
Go to last place!
Oops!
15
×
Look at the picture: Is the person holding a flower or a weight?
A weight (dumbbell).
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15
×
When you straighten your arm, what happens to the lower arm?
It moves down.
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15
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When you lift your leg, are your muscles working alone or in a system?
In a system.
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lifesaver
Give 5 points!
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star
Double points!
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gift
Win 20 points!
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thief
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15
×
What happens to the muscle at the back of the arm when you bend it?
It relaxes (gets thinner).
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15
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Describe a relaxing muscle in three words.
Thinner, softer, and longer.
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15
×
Why do muscles need to work in pairs?
Because they can only pull, not push.
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15
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Where are the muscles located that move your lower arm?
The upper arm.
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15
×
How many sets of muscles control the elbow?
Two (front and back).
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15
×
When you bend your arm, does the front muscle contract or relax?
It contracts (gets shorter/fatter).
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15
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What is the main job of the skeleton and muscles together?
To allow us to move.
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monster
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star
Double points!
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fairy
Take points!
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25
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thief
Give points!
5
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25
×
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