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

atom`ss apple

atomic mass the 'weight of an atom - the same as the mass number
atom the smallest unit of matter has the chemical characterisitcs of an element
scientific evidence collection of observations that many people have made.
atomic number number of protons in the nucleus of an atom #protons=#elections, as long as the atom is neutral (has no charge)
mass number a number of protons+ number of neutrons
scientific model an idea that allows us to create explanations of hoe we think some part of the world works, similar to a theory.
Created by: jcooke22