Save
Upgrade to remove ads
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 3 Lesson 1-2

Vocabulary

TermDefinition
matter any material that has mass and occupies space
atom the basic unit of matter; the smallest unit that maintains the chemical properties of an element.
element a chemical substance with a unique set of properties that cannot be broken down into substances with other properties.
nucleus the center core of an atom; consists of protons and neutrons.
molecule a combination of two or more atoms.
compound a substance combining atoms of two or more different elements.
macromolecule a large organic molecule; includes proteins, nucleic acids, carbohydrates, and lipids.
protein an organic compound made up of carbon, oxygen, hydrogen, nitrogen, and sometimes sulfur
nucleic acid the macromolecule that carries hereditary information; includes DNA and RNA.
pH a measure of the acidity or alkalinity (bascity) of a solution.
feedback loop a circular process that describes how an event is both a cause and an effect in the same system; can be a positive feedback loop or a negative feedback loop.
erosion the removal of soil by water, wind, ice, or gravity.
geosphere all of the rock at and below Earth's surface.
lithosphere sphere made up of the hard rock on and just below Earth's surface; the outermost layer of both Earth and its geosphere.
biosphere the Earth and all of its organisms and environments.
atmosphere the thin layer of gases that surrounds Earth.
hydrosphere all of the water- salt water and fresh water, in the form of liquid, ice, or vapor- above and below Earth's surface and in the atmosphere.
Created by: ellisha
 

 



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