Name the Planet
It is the same size as Earth's moon
Mercury
Large rocks floating in space.
asteroids
People in space
astronaut
How many moons Earth does have?
1
liquid that all life needs
water
It is the same size as Earth
Venus
rocks and dust around a planet
rings
How people go into space
rocket
How many moons does Venus have?
0
air around a planet
atmosphere
It is a gas giant with many rings.
Saturn
The name for a sun and all its planets
solar system
machines in space that help our radios, TVs, internet, and cell phones work.
satellites
How many moons does Mars have?
2
like planet Earth
Earth-like
It is the largest planet and is a gas giant.
Jupiter
A swirling group of millions or billions of solar systems, gas, and dust.
galaxy
A station in space where astronauts live.
Space station
How many moons does Neptune have?
Planets need to be in the ____: not too close or too far away from the sun
habitable zone
It is on its side and has a vertical ring.
Uranus
Everything in existence
universe
Many want to make a ____ on Mars where people can live.
colony
How many moons does Jupiter have?
79
the force by which a planet, star, galaxy, etc. draws objects toward its center
gravity