Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

6th Unit 1-c

Solar System Key Terms

TermDefinition
asteroid an irregularly shaped rock that orbits the Sun.
comet a space object made of ice and dust that orbits a star and develops a long, bright tail as it nears its star.
core the center of an object.
crater a hole in the ground caused by the impact of an object from space.
dwarf planet a nearly round object that orbits a star, is smaller than a planet, and is not a satellite of another object.
gas giant a large planet that is mainly made up of gases.
gravity the force that pulls all objects toward each other.
moon a huge ball of rock that travels around a planet; a natural satellite.
orbit to revolve around another object.
planet a very large object that orbits a star.
satellite a natural or human-made object that orbits Earth or another object in space.
solar system a group of objects in space that orbit a star
star a body in outer space, made of hot gases, that shines in the night sky.
terrestrial like Earth; describes planets that are rocky and Earthlike in size.
asteroid belt the area in space between Mars and Jupiter where most asteroids orbit.
atmosphere a layer of gases surrounding a planet, star, or moon.
gas a substance with no fixed volume or shape that can expand freely.
helium the second lightest chemical element; often a gas.
hydrogen the lightest chemical element; often a gas.
mass the measure of the amount of matter in an object.
methane a colorless, odorless, flammable gas commonly called "natural gas".
oxygen a gas that has no color, taste, or smell, and which people need to live.
Created by: darrin_evans