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

chapter 2 vocab

physical science

pure substance simply a substance
element a substance that cannot be broken down into smaller substances
atom the smallest particle of an element
compound a substance that is made from two or more simpler substances and can be broken down into those simpler substances
heterogeneous mixture the parts of a mixture that are noticeably different from one another
solutions themixture that forms when substances dissolve and form a homogeneous mixture
suspension a heterogeneous mixture that separates into layers over time
colloid contains some particles that are intermediate in size between the small particles in a solution and the larger particles in a suspension
homogeneous mixture the substances that are so evenly distributed that it is difficult to distinguish one substance in the mixture from another
physical property any characteristic of a material that can be observed or measured without changing the composition of the substances in the matreial
viscosity the tendancy of a of a liquid to keep from flowing
conductivity a material's ability to allow heat to flow
malleability the ability of a solid to be hammered without shattering
boiling point the temperature at which a substance boils
filteration a process that seperates materials based on the size of the particles
distillation a process that seperates the substances in a solution based on their boiling points
physical change occurs when some of the the properties of a material change, but the substances in the material remain the same
melting point the temperature at which a substance changes from a solid to a liquid
chemical property any ability to produce a change in the composition of matter
flammability a materials ability to burn in the presence of oxygen
chemical change occurs when a substance reacts and forms one or more new substances
precipitate any solid that forms and seperates from a liquid mixture
reactivity the property that describes how readily a substance combines chemically with other substances
Created by: sarah.garrard