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

wgu - mod 7 science


The smallest particle of an element tht has all of the element's chemical properties. atoms
an elementary or composite particle smaller than an atom. subatomic particles
a group of atoms held tightly together by covalent bonds. molecules
different forms of an element whose atoms contain the same number of protons but different numbers of neutrons. isotopes
any material that is made up of only one type of atom elements
the attraction between two atoms that holds them together in a compound. chemical bonds
a chart in which all known elements are listed in order of atomic number periodic table
the mass of a closed system wil remain constant, regardless of the processes acting inside the system. conservation of mass
the total amount of energy is an isolated system remains constant. a consequence of this law is that energy cannot be created or destroyed conservation of energy
a chemical change chemical reactions
the standard unit of atomic mass, which is equal to one-twelfth the mass of the common atom of carbon, arbitrarily given the value of exactly 12. atomic mass unit (amu)
the process whereby a reactant loses one or more electrons. oxidation
the process whereby a reactant gains one or more electrons reduction
a substance that increases the rate of a chemical reaction by lowering its activation energy catalyst
a substance that donates hydrogen ions acid
a substance that accepts hydrogen ions base
matter that has a definite volume and a definite shape solid
matter that has a definite volume but no definite shape, assuming the shape of its container liquid
matter that has neither a definite volume nore a definite shape, always filling any space available to it. gas
Created by: 1017560862