Science Topic 7

Earth's objects are pulled to ____________.

• the center of Earth

• Earth's atmosphere

• Earth's surface

• the magnetic North Pole

What is the direction of gravitational force?

• up

• down

• right

• left

Which of the following would show the effects of gravity if a cup had a hole in the side of it?

• Spin the cup to show that motion increases the effects of gravity.

• Place a magnet on the table to show that the water flows toward the magnetic pole.

• Increase the amount of water to show that the flow is influenced by the amount of water.

• Tilt the cup in different directions to show that the water still flows downward.

If something is thrown up into the sky, what is an explanation for why it doesn't stay in the sky?

• height of the object

• push from the air

• pull of gravity

• push of gravity

Which of the following does NOT support the theory of gravity?

• catching a baseball

• driving the car into the garage

• water coming out of the faucet

• jumping off a diving board

Earth revolving (moving) around the sun creates _________.

• Earth's seasons

• moon phases

• constellations

Why do sunrise and sunset times change?

• Because of Earth's rotation on its axis

• Because it automatically changes once a month

• It depends of the amount of daylight

• Because of Earth's revolution (movement) around the sun

What is a good way to show how the sun appears to rise and set?

• Use a spinning globe and a light bulb that represents the sun.

• Use a globe to show how the Earth revolves (moves) around the sun.

• Use a globe to show the moon phases.

When a city is turned toward the sun, the city experiences ________.

• night

• transition to winter

• day

• transition to summer

What is the opposite of a new moon?

• waning gibbous

• first quarter

• full moon

• waxing gibbous