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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

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.

Remove ads
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


4th Grade Earth's Resources

Molten Melted Rock
Igneous Rock Rocks that have formed from magma or lava
Sedimentary Rock Layers of rock pieces that pile on top of each other and over time become solid.
Metamorphic Rock Rocks that move back under the earth's surface where heat and pressure change them into different rocks
Soil Mixture of several materials, including sand, clay, rock, water, fungi, bacteria and decayed plants and animal material
Topsoil The top layer of soil.
Soil Conservation Measures used to protect soil from erosion
Renewable resources Resources that can be replaced by natural processes
Non-Renewable resources Resources that cannot be replaced or renewed once used
Atmosphere Blanket of air that surrounds the earth
Ultraviolet Radiation Radiation rays given off by the sun that can be harmful to living things
Petroleum Another name for oil
Conserve Using less of a resource to protect it
Recycle Reusing a resource to help protect it
Fossil fuels Coal, oil and natural gas comes from the remains of ancient living things
Gold and Iron ore are examples of Minerals
Examples of Non Renewable Resources Minerals and Fossil Fuels
Examples of Renewable Resources Trees, Wildlife, Fresh Water and Air
Created by: wjewell