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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

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.

Remove ads
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


Schrift-wk 4.4 tides

the regular rise and fall of the ocean's surface tides
an invisible force that pulls object toward each other gravity
the force of gravity between two objects depends on two things the amount of mass the objects have and the distance between the tow objects
what causes tides the gravitational pull of the moon on earth's oceans
the number of high and low tides that happen each day two high tides and two low tides
about how often do the tides change between high and low tides? about every six hours
the more mass an object has the more gravitational pull the object has
the closer objects are to each other the more gravitational attraction they will have on one another
about how long is it between two high tides about every 12 and 1/2 hours
blank blank
Created by: kschrift