This type of simple machine uses a wheel to change the direction of a force.

• wedge
• lever
• pulley
• screw

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All simple machines help make work _________.

• harder
• smaller
• lighter
• easier

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This simple machine allowed Elijah to lift a heavy rock.

• wedge
• lever
• screw
• inclined plane

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Simple machines can change the amount of_______ needed to do work.

• gravity
• people
• force
• pulley

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This simple machine helped Olivia move the weight across the room.

• lever
• wedge
• wheel and axle
• screw

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This simple machine helps force objects apart.

• wedge
• lever
• pulley
• inclined plane

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This type of simple machine has a slanted surface.

• wedge
• screw
• pulley
• inclined plane

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This type of lever lets you launch things through the air.

• bazooka
• catapult
• slingshot
• air cannon

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A catapult is which type of simple machine?

• a wedge
• a lever
• a screw
• an inclined plane

How many different simple machines are there?

• 4
• 5
• 6
• 7