Students launch air rockets in their science class. Air pressure from a hand pump causes the rockets to rise into the sky. What force causes them to return toward the ground?

• Wind pushing up

• Pull of Earth’s gravity

• Heat from the Sun

• Magnetic north pole

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NGSS.MS-PS2-4

Which of these objects would be attracted to a magnet?

• Iron nail

• Wooden pencil

• Rubber band

• Plastic ruler

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NGSS.3-PS2-3

NGSS.3-PS2-4

What is the downward force that pulls objects to the Earth?

• Magnetism

• Air pressure

• Electricity

• Gravity

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NGSS.5-PS2-1

A student wants to show how the force of gravity can move a book. Which of the following would best show how gravity can move a book?

• Sliding a book across the table

• Dropping a book onto the floor

• Carrying a book to a bookshelf

• Turning the book face down

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NGSS.3-PS2-1

NGSS.5-PS2-1

• A

• B

• C

• D

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is it the force that causes objects to fall to the ground?

• Gravity

• Friction

• Magnetism

• Electricity

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NGSS.5-PS2-1

• Magnetism

• Electricity

• Friction

• Gravity

Which movement is the result of gravity?

• A wheel turning

• A knife cutting bread

• An electric fan blowing air

• A raindrop falling to the ground

• Move closer to Magnet 1

• Move away from Magnet 1

• Not move until Magnet 1 touches it

• Get stronger as Magnet 1 gets closer

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

• A

• B

• C

• D

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NGSS.MS-PS2-2

NGSS.MS-PS2-5