The day night cycle is caused by?

A large, bowl-shaped cavity in the ground or on the surface of a planet or the moon, typically one caused by an explosion or the impact of a meteorite.

A three-dimensional representation of a system or thing used as an example  but typically on a smaller scale than the original.

"The student made a _______ of the solar system."

When an object goes around another object.

A repeated or regular way in which something happens or is done.

When a planet spins on it's axis.

The reason that all life is possible in our Solar System.

S planet whose orbit lies within the asteroid belt. 

What word describes why the Earth has a year.

From what direction does the sunrise appear?

What does the rotation of the earth cause.

The amount or quantity of heaviness of a thing caused by the relative force of gravity. 

I am known as the sister planet to Earth because of my similar size.

Any one of the aspects or appearances presented by the moon as seen from Earth.

A dark area or shape produced by a body coming between rays of light and a surface.

An imaginary line that a planet spins on.

A celestial or artificial body orbiting the earth or another planet.

This planet is named after the Roman God of the Sea and it has the second largest gravity of any planet in the solar system second only to Jupiter.

Each of the four divisions of the year marked by particular weather patterns and daylight hours. 

What moon phases are shown below.

Describe why the sun appears to move across the sky?

Why are there seasons on the Earth?

This planets is often referred to as an “ice giant” planet.  It hits the coldest temperatures of any planet and it spins on its side.

How many rotations are in one revolution?

Jupiter, Saturn, Uranus, Neptune are all classified as.