Space Crossword

The force which attracts all matter together. Stars and planets have a lot of it.
The closest planet to the sun.
The largest planet in our solar system.
The two ice giant planets are Uranus and ______.
The force of the chemical reaction in a rocket engine exits through this.
Rockets have two tanks. One holds fuel and one holds an _______ such as liquid oxygen.
Fuel and oxidizer mix and react inside the rocket's _______ chamber.
Fuel is moved through a rocket's fuel line by a _______.
A measure of distance longer than a light-year
There is no atmosphere in space, so an object's motion is not slowed by the force of ______.
The largest object in the solar system
The path the planets travel around the sun is call a(n) _________.
The four inner planets, made mostly of rock and metal, are called __________ planets.
The chemical reaction inside a rocket generates a(n) ________ which lifts the rocket into space.
Beyond Neptune, many objects orbit the sun in the _______ belt.
The two largest planets, Jupiter and Saturn, are ______ giants