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What is the formula for density?
D= M/V
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Density is a property of _______.
Matter.
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Why is it important that ice floats?
- Higher water levels = land goes under water, destroying habitats
- Destroy marine life = Ice is an insulator that keeps the water at a good temperature. It would sink and stop insulating the surface
- Ice would have trouble melting in the summer = it gets accumulated making all water ice
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If an object has a density of 1.7 g/ml, will it float? If so, how much of it is in the water?
It will not float
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If an object has a density of 0.4 g/ml, will it float? If so, how much of it is in the water?
Yes, it will float. 40% of the object will be in the water
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If an object has a density of 1.0 g/ml, will it float? If so, how much of it is in the water?
It is neutrally buoyant, meaning it is all in the water, but it doesn't sink.
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If an object has a density of 2.39 g/ml, will it float? If so, how much of it is in the water?
It will not float
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If an object has a density of .82147 g/ml, will it float? If so, how much of it is in the water?
It will float. 82.147% of the object will be in the water
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The density of an object will ______ __ _____, even if it is _________
Remain the same, bigger/smaller
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The only way to change the density of an object is to _____ or _____
Apply compression, change the temperature
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Use a ______ to find the volume of an irregular shaped object that is too big for a graduated cylinder.
Overflow can
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If you were to explain what density is, how do you describe it?
Density is the amount of matter packed into a space. A more dense object is tightly packed together with matter (like lead or gold). A less dense object is more spread out with matter (like styrofoam)
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When is the density of matter at it's highest point?
38 degrees F, 4 degrees C
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Cold air will _____ because it is _______ than warm air
sink, denser
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Warm air will _____ because it is _______ than cold air
Rise, less dense
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Convection
The rising and falling motion of air.
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Extreme _____ leads to hurricanes, tornado's, and other natural disasters.
Convection
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