Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
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

Earth Changes

4th Grade

What is weathering? It is the process by which rocks are broken down into smaller pieces.
What is erosion? It is the process by which wind and moving water carry away bits of rock.
What is deposition? It is the process of dropping, or depositing, sediment in a new location.
What is a renewable resource? Resources that are replaced as they are used.
What is a nonrenewable resource? Resources that CANNOT be replaced once they are used.
What does it me to reuse? It is to use a resource over again.
What does it mean to reduce? It is to cut down on the use of resources.
Where do fossil fuels come from? They are formed from the remains of organisms that lived long again.
What does it mean to recycle? It is to reuse a resource to make something new.
What is conservation? It is the careful management and wise use of natural resources.
What is rotation? It refers to the spinning of Earth on its axis.
What is an orbit or revolution? It is to move in a circular course.
What is an axis? An axis is an imaginary line that runs through both poles of a planet.
What is a new moon? It is moon that is dark because the lighter side is away from the sun.
What is a first quarter moon? It is a moon that is illuminated on its right side and is 1/4th of the way through its orbit around the earth.
What is a last quarter moon? It is a moon that is illiminated on the left side and is 3/4ths through its orbit around the earth.
What is a full moon? It is a moon that totally illuminated, faces the sun, and is 1/2 of the way through its orbit around the earth.
What does illuminated mean? It is to be visible.
What are seasons? A season is a time of the year such as spring, summer, winter, and fall.
Created by: fab science
Popular Science sets




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