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 7 practice S

Definition
Matter Anything that has mass and takes up space.
Chemistry The study of matter and how matter changes.
Substance A single kind of matter that is pure, meaning it always has a specific make-up, or composition.
Physical property A characteristic of a substance that can be observed without changing it into another substance.
Chemical Property A characteristic of a substance that describes its ability to change into different substances.
Atom the basic particle that all elements are made of.
Chemical bond When atoms combine from more than one element
Compound A substance made of 2 or more elements that are combined in a set ratio
Chemical Formula Shows the elements that make the compound and the ratio or amount of atoms of each element.
Mixture made of 2 or more substances that are together in the same place, but their atoms have not chemically bonded
Heterogeneous mixture When a mixture is not the same throughout
Homogenous mixture When the mixture is the same throughout
Weight The measure of the force of gravity on you
Mass The amount of matter in the object
SI International unit of measure that scientists use.
Volume The amount of space that matter occupies.
Density How tightly packed the matter is in an object, compares the objects mass to its volume. Density formula D: M/V
Physical Change It alters the form or appearance of matter but does not turn any substance in the matter into a different substance. If a substance undergoes a physical change it is still the same substance after the change.
Chemical Change A change in matter that produces one or more new substances, also called a chemical reaction.
Law of Conservation of Mass Matter is not created or destroyed in any physical or chemical change only changed into something different.
Thermal Energy The total energy of the motion of all of the particles (atoms/molecules) in an object. (Heat Energy)
Endothermic Change A change in which energy is absorbed.
Exothermic Change A change in which energy is released.
Chemical Energy The energy stored in the chemical bonds between atoms is a form of energy.
Created by: user-1898580
Popular 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