Grade 6 Science Unit 2 Review

The only planet that supports life

• Mercury

• Neptune

• Earth

• Jupiter

What is the age of the planet Earth?

• 2 million years

• 16 trillion years

• 72 billion years

• 4.5 billion years

Earth spins on an imaginary line called an?

• Longitude

• Equator

• Axis

• Radius

It takes how many hours to complete a rotation of Earth on its axis?

• 20

• 25

• 24

• 23

What do you call to the Earth’s movement around the Sun?

• Rotation

• Revolution

• Orbit

• Inclination

A revolution takes one _____.

• Year

• Month

• Day

Earth _____ around its axis.

• Rotates

• Revolves

When the Earth faces towards the Sun, it is _____.

• Daytime

• Nighttime

When the Earth faces away from Sun, it is _____.

• Daytime

• Nighttime

Why do we experience the changing of the season on the earth?

• distance from the sun
• rotation of the earth
• change in solar output
• tilt of the earth's axis