What is the fourth planet from the Sun?

• Earth
• Mars
• Jupiter
• Mercury

Earth and the other planets closest to the Sun are made mostly of _______

• gas
• metal
• water
• rock

The __________ has planets, moons, comets, and asteroids.

• solar system
• earth
• rotation
• United States

Day and night is caused by the _____________ of earth on its axis.

• revolution
• orbit
• rotation

Which is the second closest planet to the sun?

• Earth
• Saturn
• Venus
• Mercury

Which is the fourth planet from the sun?

• Mars
• Saturn
• Earth
• Jupiter

Which planet is third from the sun?

• Mars
• Pluto
• Venus
• Earth

What is the only planet known to contain life?

• Mars
• Earth
• Neptune
• Uranus

Which is the second closest planet to the sun?

• Earth
• Saturn
• Venus
• Mercury

The planet with the shortest year is

• Earth
• Neptune
• Pluto
• Mercury