Space Systems Review

Front

What celestial object orbits the Earth?

Back

Moon

Front

What causes seasonal changes on Earth?

Back

Earth's tilt and revolution around the Sun

Front

Why do we have seasons?

Back

Because the Earth is tilted

Front

What is the term for the changing shape of the moon during its 28-day cycle?

Back

Phases

Front

What is the invisible force that pulls objects closer together?

Back

Gravity

Front

What is the name of the star at the center of our solar system?

Back

Sun

Front

What do we call the path that Earth takes around the Sun?

Back

Orbit

Front

What is the term for the time it takes for the Earth to complete one rotation on its axis?

Back

24 hours

Front

What is the effect of the Earth's tilt on climate?

Back

It causes different seasons.

Front

What is the name of the force that keeps planets in orbit around the Sun?

Back

Gravity