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15
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If two objects have the same mass but one floats and the other sinks, what is different about them?
Their shape or density
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15
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If an object is floating, what does that tell us about the forces acting on it?
The upthrust is equal to the object's weight
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15
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Why do large ships float even though they are very heavy?
Their shape displaces a large amount of water, creating enough upthrust to balance their weight
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monster
Reset all scores!
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
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What does it mean if a result does not fit the pattern in an experiment?
There may have been an error in measurement, or an additional factor affected the result
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banana
Go to last place!
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star
Double points!
Okay!
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rocket
Go to first place!
Okay!
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thief
Give points!
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25
15
×
What does it mean if an object is denser than water?
It will sink
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15
×
What is the independent variable in an experiment on floating and sinking?
The factor that we change, e.g., the type of material or shape of the object
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15
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What is the force that pushes objects up when they are in water?
Upthrust
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15
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How does changing the shape of an object affect whether it floats or sinks?
A flatter or more spread-out shape may help it float by increasing the upthrust
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15
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What happens to water when you place an object in it?
Some water is displaced
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15
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What do we call the variable that stays the same in an experiment to keep it fair?
The control variable
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15
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What happens when the upthrust on an object is greater than its weight?
The object floats
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seesaw
Swap points!
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seesaw
Swap points!
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shark
Other team loses 10 points!
Okay!
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thief
Give points!
5
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25
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trap
No points!
Oops!
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rocket
Go to first place!
Okay!
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gift
Win 25 points!
Okay!
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baam
Lose 20 points!
Oops!
15
×
Why is accuracy important in a floating and sinking experiment?
So that the results are reliable and can show true patterns
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