Earth in the Universe

What is the major reason Earth has seasons?

• Earth has a moon.

• Earth has a tilted axis.

• Earth has a magnetic field.

• Earth has an elliptical orbit.

All of these are examples of the ways Earth and the Moon interact EXCEPT

• the phases of the moon.

• the tides on Earth.

• seasons on Earth.

• lunar eclipses

Why are there high and low tides on Earth?

• They are due to changes in the moon’s tilt on its axis.

• They are due to the gravitational pull between Earth and the moon.

• They are due to the magnetic force between Earth and the moon.

• They are due to changes in the moon’s speed every month.

Meagan learned that the way Earth moves around the Sun causes changes to the seasons. Which BEST explains why winter is colder than summer?

• Earth spins faster on its axis in winter.

• Earth is farther from the Sun in winter.

• The rotation of Earth causes more wind to blow in winter.

• The tilt of Earth allows less energy to be received in winter.

Which of the following is a result of the tilt of Earth’s axis?

• seasonal changes

• hours in a day

• heights of tides

• moon phases

When nearly vertical rays of solar energy strike a region of Earth, that area has warm temperatures. What region of Earth gets nearly vertical rays of solar energy year round?

• Equator

• Australia

• United States

• North and South Poles

Which of these natural events occurs at time intervals that are the MOST regular?

• drought and flooding

• high tides and low tides

• clear skies and cloudy skies

• hot weather and cool weather

Dan knows that Earth is tilted 23.5° on its axis. Which is caused because of this tilt?

• day can become night

• different seasons occur

• low tide can become high tide

• the phases of the moon can change

A diagram of Earth orbiting the Sun is shown. In which position of Earth does the Northern Hemisphere receive the greatest amount of solar energy?

• 1

• 2

• 3

• 4

Tides on Earth are mostly caused by the gravitational pull of

• the Sun

• stars

• the Moon

• asteroids