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

Solar System Intro

Use to help study for your quiz on Introducing the Solar System

QuestionAnswer
Planet An object that orbits the sun, is round, and has cleared the area of its orbit. (has its own orbit)
Solar System The sun, the planets, their moons, and a variety of small objects.
Planetesimal Small body that combined with like bodies to form all the other objects in our solar system.
Astronomical unit Used to measure distances within the solar system.
Dwarf planet An Object that orbits the sun, is spherical but has not cleared the area of its own objects. (doesn't have its own orbit)
Rotation on its axis One day on a planet.
Revolution around the sun One year on a planet.
Natural Satellite Another name for a moon.
Sun The star in our solar system
When did the solar system form? 4.6 Billion years ago
99.85 % of the solar systems mass is from the sun Mass of the sun
Outer Planets Jupiter, Saturn, Uranus and Neptune. Large planets made of gasses and liquid.
Inner Planets Mercury, Venus, Earth, and Mars. Small and made of rock and metal.
How was the solar system formed? A spinning disk of gas was pulled by gravity and forces a sun to form. Planetesimals collided together to make the planets.
What makes up the solar system? Made up of a star, planets, dwarf planets, asteroids, comets, and moons.
Created by: samir.ezzelarb