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.

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

study stack123

6th grade test

chemistry the study of matter
atoms smallest piece of of a element
nucleus center of a atom
proton positive part of a atom
atomic mass protons+nuetrons
atomic theory what scientists think about atoms
element a substance that contains 1 kind of atom
periodic table of elements the classification system that organizes elements based on the atomic numbers and groups then into the rows and columns based on their chemical and physical pproperties
Mendeleeve invented periodic table
chemical symbol abbreviation for name of element
molecules atoms held together by chemical forces
covalent bond a bond that occurs when atoms share pairs of electrons
acid a compound that forms hydrogen ions when dissolved in water
base a compound that forms hydroxide ions when dissolved in water
pH scale determines the concentration of or the amount of acids and bases in a solution
indicators a substance that changes color when exposed to acid or base solutions
neutralize when acid and bases come in contact with another
salt a compound that forms after a base and acid combine
atomic number the number of protons in a nucleus (also the same as the number of electrons)
chemical reaction a joining of different types of atoms to form new substances
compounds a substance formed when 2 or more different elements join together chemically
the Bohr model based on how atoms act, is a model of the rings of an atom
Created by: joshfox