Unit 4 Lesson 1

Front

How long does it take Earth to move around the Sun?

Back

It takes Earth one year to orbit around the Sun.

Front

What is one pattern that is caused by the motion of the Earth?

Back

One pattern caused by the motion of the Earth is day and night.

Front

How many times does the Sun orbit, or move around the Earth each day?

Back

The Sun does not orbit around the Earth; it appears to move across the sky once a day.

Front

Are all of the inner planets made of solid, rocky material?

Back

Yes, all of the inner planets are made of solid, rocky material.

Front

Does it take Earth 365 days to orbit around the Sun?

Back

Yes, it takes Earth 365 days to complete one orbit around the Sun.

Front

What is the name of the path that Earth takes around the Sun?

Back

The path that Earth takes around the Sun is called an orbit.

Front

What causes day and night on Earth?

Back

Day and night are caused by the rotation of the Earth on its axis.

Front

What are the inner planets of our solar system?

Back

The inner planets are Mercury, Venus, Earth, and Mars.

Front

What is the main difference between inner and outer planets?

Back

Inner planets are rocky, while outer planets are gas giants.

Front

How long does it take for the Earth to rotate once on its axis?

Back

It takes Earth 24 hours to complete one rotation on its axis.