Save Status:
or to save your progress. The page will not refresh.
Answer Key:
Edit a Copy:
Make Your Own:
Crossword Word Search Worksheet
Rate This Puzzle:
Log in or sign up to rate this puzzle.


Dark patches on the sun which are cooler than the rest of the sun.
The property that indicates how much matter is contained in an object.
The different shapes Venus appears to take as it orbits the sun.
The center of the Earth.
This is what we call the Moon when it is completely dark to the Earth.
Dark patches on the surface of the Moon that are smooth, flat plains.
To turn around a fixed point, the way a top spins.
A physical force causing objects to pull on other objects.
A large magnetic field that surrounds the Earth and some other planets.
The solid most outer layer of the Earth.
A name given to Venus when it is visible in the early morning just before the sun rises.
Everything that exists in space, including planets, sun, and stars.
Large fires that burst from the Sun, releasing energy into the solar system.
Rocks that orbit in space, sometimes crashing into planets and other satellites.
A device that sends out signals that bounce off the surface of an object and return to the device.
The layer of the Earth just below the Earth's crust and above the core.
How the Moon looks to the Earth when the entire Moon is visible and lit-up.
Frozen carbon dioxide
Rock from space that hits the Earth's atmosphere and burns up.
The layers of gases and mist that cover a planet.
Ground water that is considered permanently frozen.
A special habitat that can sustain life.
The path that an object or planet follows around the sun.
This is what we call the Moon when we can see exactly half of the Moon lit up.
The largest volcano in our solar system.
Planets that are not solid, but instead are made of gas.
A scientist who built telescopes and studied astronomy.
Planets that are "earth-like," having a solid surface upon which you can stand.
This word means to pass over.
The stuff that makes up everything around you. Anything that occupies space.
America's space agency
A word used to refer to the Moon.
Molten or melted rock that flows from a volcano.