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.
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


Unit 1 Matter

Matter Anything that has mass and takes up space
Mass Describes the amount of matter in an object
Weight A measure of gravitational force on an object
Volume The amount of space that an object takes up, or occupies
Density A measure of the amount of mass given volume
Physical Property A characteristic of a substance that can be observed and measured without changing the identity of the substance
Chemical Property Describes a substances ability to change into a new substance with different properties
Physical Change A change that affects one or more Physical properties of a substance
Chemical Change Occurs when one or more substances change into entirely new substances with different properties
Law of Conservation of Mass States that in ordinary chemical and physical changes, mass is not created or destroyed but is only transformed into different substances
Atom smallest unit of an element that maintains the properties of that element
Compound Made up of differet kinds of atoms chemically combined
Mixture Contains a variety of elements and compounds that are not chemically combined with eachother
Pure substance Elements and compounds
Heterogeneous something that does not have a uniform composition
Homogeneous Describes something that has a uniform structure or composition throughout
Element Made up of one or more of the same kind of atom chemically combined
Solid Substance that has defined volume and shape.
Liquid Substance has a definite volume but not a definite shape
Gas Does not have definite volume or shape
Freezing The change in satate in which a liquid becomes a slid
Melting The change of state from a solid to a liquid
Evaporation The change of state from a liquid to a gas that usually occurs at the surface of a liquid
Boiling Rapid change from a liquid to a gas, or vapor
Condensation The change of state from a gas to a liquid
Sublimation The change from a solid state directly into a gas
Deposition The change in state from a gas directly to a solid
Created by: 18mboaz1106