How Earth Moves

The ​ (a)   helped scientists prove that Earth is not the ​ (b)   of the solar system.

• telescope
• center
• microscope
• focus

We know that the center of the solar system is a ​ (a)   we call the ​ (b)   .

• star
• sun
• moon
• Earth

Tags

NGSS.MS-ESS1-1

The ​ (a)   appears to circle ​ (b)   because Earth spins. As our planet spins, the sun and stars appear to ​ (c)   across the sky.

• sun
• Earth
• move
• asteroids
• Neptune
• dance

Tags

NGSS.MS-ESS1-1

Match the following definition to its vocabulary word.

• one whole spin of an object

• orbit

• path an object takes as it revolves

• rotation

• one full orbit of an object

• axis

• imaginary line

• revolution

Tags

NGSS.MS-ESS1-1

Why does the sun appear to move from east to west across the sky?

• Earth rotates from west to east.

• Earth rotates east to west.

• Earth rotates north to south.

• Earth rotates south to north.

Tags

NGSS.MS-ESS1-1

How are the orbits of Earth and moon alike? Different?

Earth on the left and moon on the right.

a

b

c

Orbits Earth

Elliptical

Orbits the sun

Tags

NGSS.MS-ESS1-1

Earth's tilt affects how much sunlight parts of Earth recieve.

• TRUE

• FALSE

Tags

NGSS.MS-ESS1-1

_______ change as Earth's axis tilts either toward or away from the sun at different times during its revolution.

Tags

NGSS.MS-ESS1-1

In the diagram, label each part of Earth's orbit with the Northern Hemisphere season that it represents.

a

b

c

d

Spring

Winter

Summer

Fall

Tags

NGSS.MS-ESS1-1