Sink or float quiz for kindergarten with answers.

📚 Quick Study Guide

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• Density: An object will float if it is less dense than water and sink if it is denser than water.
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• Density Formula: Density = $\frac{Mass}{Volume}$
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• Floating: Objects like wood and leaves usually float.
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• Sinking: Objects like rocks and metal usually sink.
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• Buoyancy: The upward force exerted by a fluid that opposes the weight of an immersed object.
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• Tip: Even heavy things can float if they are shaped to displace enough water (like a boat!).

Practice Quiz

1. What makes an object float?
1. It is heavier than water.
2. It is less dense than water.
3. It is the same density as water.
2. Which of these objects will likely sink?
1. A feather
2. A rock
3. A leaf
3. What is the upward force that helps things float called?
1. Gravity
2. Buoyancy
3. Weight
4. If an object has a mass of 10 grams and a volume of 5 cubic centimeters, will it float or sink?
1. Float
2. Sink
3. Neither
5. Which of these is MOST likely to float?
1. A metal spoon
2. A plastic bottle
3. A glass marble
6. What happens when an object is denser than water?
1. It floats.
2. It sinks.
3. It stays in the middle.
7. Why does a big ship made of metal float?
1. Because metal is lighter than water.
2. Because of its shape displacing a lot of water.
3. Because the ship has holes in it.