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Sinking and Floating Basics

Explore the principles of sinking and floating with this engaging Grade 4 science worksheet, covering density, buoyancy, and object properties.

Grade 4 Science PhysicsSinking and Floating
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Multiple ChoiceTrue / FalseFill in the BlanksShort AnswerCustom

Standards

4-PS3-2

Topics

sciencephysicssinkingfloatinggrade 4
7 sections · Free to use · Printable
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Sinking and Floating Basics

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Date:

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Read each question carefully and answer to the best of your ability. Some questions may ask you to think about objects you've seen or used before.

1. Which of these objects is most likely to float in water?

a

A metal spoon

b

A wooden block

c

A rock

d

A glass marble

2. What force pushes objects upward in water, making them float?

a

Gravity

b

Friction

c

Buoyancy

d

Magnetism

3. All objects that are heavy will sink.

T

True

F

False

4. An object's shape can affect whether it sinks or floats.

T

True

F

False

5. An object will float if it is less   than the water it displaces.

6. Boats can float because their shape helps them to   enough water.

7. Explain why a small pebble sinks, but a large log floats.

8. Look at the image below. Do you think this boat will sink or float? Explain your reasoning.

Japanese Patrol Boat No.39 sinking