Sink or Float Science Worksheet
Explore the concepts of sinking and floating with this engaging Grade 3 science worksheet.
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Sink or Float Science
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Read each question carefully and answer to the best of your ability. This worksheet will help you understand why some objects sink and others float.
1. What makes an object float on water?
It is heavy
It is less dense than water
It is very small
It is made of metal
2. Which of these objects is most likely to sink in water?
A cork
A wooden block
A rock
A plastic toy boat
3. An object will if it is less dense than water.
4. An object will if it is more dense than water.
5. A small pebble will always float because it is small.
True
False
6. A large log can float because wood is less dense than water.
True
False
7. Describe an experiment you could do to test if an object will sink or float.