Buoyancy Basics
Explore the principles of buoyancy with this engaging worksheet for 5th graders, covering density, displacement, and floating vs. sinking.
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Buoyancy Basics
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Read each question carefully and answer to the best of your ability. Good luck!
1. What is buoyancy?
The force that pulls objects down
The upward force exerted by a fluid that opposes the weight of an immersed object
The speed at which an object moves through water
The amount of water an object can hold
2. An object will float if its density is:
Greater than the fluid it is in
Less than the fluid it is in
Equal to the fluid it is in
Unrelated to the fluid it is in
3. The amount of space an object takes up is called its .
4. When an object pushes water out of the way, it is called .
5. A boat floats because the buoyant force is to its weight.
6. All objects sink in water.
True
False
7. A rock sinks because it is denser than water.
True
False
8. Explain why a large, heavy ship can float, but a small pebble sinks.