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

Grade 4 E-1 Sci. Def

Chapter 1 Matter and Its Changes

Matter Everything in the universe that has mass and takes up space
Mass The amount of matter something contains
Solid The state of matter that has a definite shape and takes up a definite amount of space
Liquid The state of matter that takes the shape of its container and takes up a definite amount of space
Gas The state of matter that has no definite shape and takes up no definite amount of space
Volume The amount of space that matter takes up
Density The property of matter that compares the amount of matter to the space it takes up
Solution A mixture in which the particles of different kinds of matter are mixed evenly with each other and particles do not settle out
Dissolve When one material forms a solution with another material
Solubility A measure of the amount of a material that will dissolve in another material
Buoyancy The ability of matter to float in a liquid or gas
Physical change Any change in the size, shape, or state of a substance
Chemical change A change that produces one or more new substances and may release energy
Chemical reaction Another term for chemical change
Created by: scscolts