Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


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
remaining cards
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:
restart all cards
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

8Sci CH19

8th Science CH19 The Solar System

asteroid traveling chunks of rock found mostly in the asteroid belt between the orbits of Mars and Jupiter; “runaway” asteroids may be captured by planetary gravity and become moons or may be responsible for some surface features of planets
comet large chunk of ice, dust, gases, and rock fragments that travels through space and is pulled into orbit by the sun’s gravity
gaseous giant planets huge, low-density planets made mainly of gases; these planets were formed farther from the sun where the effects of solar winds and thermal energy were less intense; Jupiter, Saturn, Uranus, and Neptune
meteor space object formed of rock fragments; meteors are called meteoroids until they enter Earth’s atmosphere; meteors glow as they streak across the night sky and most burn up completely due to friction
meteorite meteoroids that survive passing through Earth’s atmosphere and hit Earth’s surface, sometimes producing craters
planet body of matter that moves around a star in a fixed, counterclockwise orbit; except for Pluto, which is small and formed of rock and ice, the planets of our solar system are classified as either Earth-like terrestrial planets or gaseous giant planets
solar system system formed about 5 billion years ago from a rotating cloud of hydrogen and helium gases and dust particles that condensed to form its major components--the sun and its nine planets
terrestrial planets the four small planets that were formed nearest the sun and whose surfaces are composed of dense, rocky material; Mercury, Venus, Earth and Mars