Which force is represented in this picture?

• Magnetism

• Air resistance

• Friction

• Gravity

Can you see gravity?

• No

• Yes

• Maybe

• I don't know

What would happen to you if gravity disappeared?

• I would fall.

• I would float.

• I would fly away.

• I would cry.

Do humans need gravity to survive?

• Only sometimes.

• Yes, definitely.

• No.

• I don't know.

Which force keeps the earth in its place in the solar system?

• Friction

• Magnetism

• Push

• Gravity

Who discovered gravity?

• Sir Isaac Newton

• Albert Einstein

• Leonardo da Vinci

• Oprah Winfrey

Which fruit fell from a tree when gravity was discovered?

• Mango

• Orange

• Apple

• Watermelon

Which object has the strongest gravitational pull?

• A bowling ball

• A car

• The earth

• The planet Mars

• The Sun

What effect does the moon's gravity have on the Earth?

• It causes ocean tides.

• It makes the atmosphere rise.

• It pulls some objects toward the moon.

• It has no effect because it's too small.

Why is there no gravity in space? Because...

• You are too close to the moon.

• There is no water in space.

• It is too far from the earth's gravitational force.

• The astronauts brought it back to earth.