Formation of Solar System

What type of planet is Pluto

The moon reduces the Earth's wobble.

In between Mars and Jupiter is an area called the _____.

A __________ is a small rocky body orbiting the sun

The rockiest planets in our solar system are located furthest away from the sun.

What is a planet called when it is beyond our solar solar system?

At the far end of our solar system is an area called the ____.

What is the size of our sun?

A ____________ is a small body of matter from outer space that enters the earth's atmosphere

The Earth is smaller than Mercury

The four inner planets are mostly composed of...

How many exoplanets have been discovered?

The moon is moving two _______ further away from the Earth each year.

A _____ is a meteor that survives its passage through the earth's atmosphere such that part of it strikes the ground

In what year did we find our first planet beyond our own solar system, orbitting another star?

What is a nebula?

Our solar system is approximately ___ billion years old.

Energy and particles sent out by the Sun are called ____.

What causes the tides?

The outer planets are so far from the Sun that the winds could not blow away their ____ and ____.

A _______ is a celestial object consisting of a nucleus of ice and dust

Where did the moon come from?

How big is the moon compared to Earth?

When did humans first walk on the moon?