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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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

AQ 1-2 vocab


matter is anything that takes up space and has mass
pollutant A substance that can make air, soil, or water harmful to organisms and structures
volume A measure of how much space something takes up
mass The amount of "stuff" something contains
Atom The basic building block of matter
molecule A combination of two of more atoms
compound A pure substance made up of two or more different elements
pure substance A type of matter composed of a single type of particle and always has distinct, predictable properties
physical change A change in the form or appearance of matter, but not its composition
chemical change A change in the composition, or chemical makeup,of a sample of matter. A chemical change is also known as a chemical reaction
Photosynthesis The process through which green plants use the energy of sunlight to make food and oxygen
Qualitative data types of data that have statistics
Quantitative data Data that is not as accurate
Created by: kiran.chahal



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:
restart all cards