Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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 Vocabulary

What is Matter

TermDefinition
Chemistry The scientific study of the composition, structure, and properties of matter and the changes that matter undergoes
Matter Anything that has mass and takes up space
Element A substance that cannot be separated or broken down into simpler substances by chemical means.
Atom The smallest unit of one type of element that maintains the properties of that element.
Compound A substance made of atoms of two or more different elements that are chemically combined (usually a metal + a nonmetal)
Molecule The smallest unit of a substance that keeps all of the physical and chemical properties of that substance (usually made of nonmetals)
Chemical Formula A notation using a combination of chemical symbols and numbers to represent a substance.
Pure Substance A sample of matter, either a single element or a single compound/molecule, that has definite chemical and physical properties
Mixture A combination of two or more substances that are not chemically combined.
Physical Property A property of matter that describes the substance which is observed WITHOUT a chemical change
Melting Point The temperature and pressure at which a solid becomes a liquid
Boiling Point The temperature at which a liquid becomes a gas
Density The ratio of the mass of a substance to the volume of a substance
Chemical Property A property of matter that describes how the substance reacts with other substances during chemical changes.
Reactivity An ability of a substance to combine chemically with another substance
Flammability The ability of a substance to react in the presence of oxygen and burn when exposed to a flame
Physical Change A change of matter from one form to another without a change in chemical properties
Chemical Change A change that occurs when a substance changes composition by forming one or more new substances
Energy The capacity to do work
Thermal Energy The kinetic energy of a substance's atoms
Evaporation The change of a substance from a liquid to a gas
Sublimation The process in which a solid changes directly into a gas
Condensation The change of a substance from a gas to a liquid
Deposition The process in which a gas changes directly into a solid
Melting The process of a solid changing into a liquid
Freezing The process of a liquid changing into a solid
Created by: cjcarter
Popular Physical Science sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards