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

unit b-2 scienc

These cards I made will be used to study for the unit B-2 quiz.

state of matter the type of matter a substance is which could be either, liquid, gas, or solid
solid a state of matter that has low energy, high attraction force, unchanging shape and volume
liquid a state of matter that has medium energy and attraction force and has a changing shape, but not a changing volume
gas a state of matter that has high energy and low attraction force, and has a changing volume and shape
atom the smallest piece of matter that still keeps the same properties of the original piece of matter
proton the sub atomic particle that is inside the nucleus and is what controls the element’s name
neutron the sub atomic particle that is inside the nucleus and affects the mass number of an atom
nucleus the part of the atom that is in the center and is made of both neutrons and protons
electron the sub-atomic particle that controls the reactivity level and the ion charge
electron cloud the space around the atom where the electrons are
valence electrons electrons on the outermost shell
The Periodic Table of Elements the scientific table that organizes all the known elements natural and not by putting them in groups based on their chemical properties
Reactivity a matter’s ability to react with other materials
atomic number number of protons in a single atom
mass number the number of particles in the nucleus of a single atom and is measured by AMU
atomic mass the average mass number of all the isotopes of a single element
Element a material that is used to make other materials and has to be on the periodic table
Created by: rajeevlives



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