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

Unit 3 lesson 1

Historical Model of solar system

QuestionAnswer
A. Elliptical shaped like a flattened circle
B. Geocentric Describe something that uses Earth as the reference point
C. Gravitational Force the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface
D.Heliocentric Sun-centered
E.Moon the natural satellite of the earth, visible (chiefly at night) by reflected light from the sun.
F.Orbit The Path that a body follows as it travels around another body in space
G.Planet A relatively large spherical body that orbits a star.
H.Solar System The sun and all of the planets and other bodies that travel around it
I.Parallax the angular amount of parallax in a particular case, especially that of a star viewed from different points in the earth's orbit.
Created by: 4801714688