Solar System Unit

The inner planets include Mercury, Venus, Earth, and _____.

Certain groupings of stars are called _____.

Which one of these is not a constellation?

One point of reference used in history is Polaris, also known as _____.

_____ are bright masses of ice that have a long tail and orbit the sun.

_____ is affected by the force of gravity.

The scientific study of space is called _____.

The moon revolves around _____.

An example of ______ is reading your horoscope.

A _____ happens when the moon blocks out the light from the sun, forming a shadow on Earth.

When the moon is between the Earth and the sun, the dark side is facing us. This is called ___.

The Earth revolves around the sun every _____.

A _____ eclipse is safe to view at any time.

The large holes on the surface of the moon are called _____.

_____ stays the same on every planet.

The outer planets have a _____ atmosphere.

______ are pieces of meteoroids that reach the Earth's atmosphere and burn up (shooting star).

When the Earth is between the sun and the moon, the lit up side is facing us. This is called _.

The inner and outer planets are separated by the _____.

The Earth rotates on a tilted axis every _____.