Save
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

yshs TriadES

Triad earth Science Ch 17.3-17.4

QuestionAnswer
Mineral naturally occuring solids that are composed of a definite chemical compound.
Igneous rock Rock that forms as lava cools and hardens.Type one: Extrusive- lava that escapes to the surface and cools creating a relatively soft rock. Type two: Intrusive-Lava that remains underground and cools slowly creating hard rock like granite.
Sedimentary rock Rock that form like cement. As sediment (rocks, shells,skeletons) settle it is compressed together by the weight of the layers above. It also is formed by the filling in of the spaces between the bits of sediment with small particles like a paste.
Methmorphic rock Created from chemical changes caused by heat and pressure.
Weathering Changes in the chemical of physical form of rock due to being exposed to weather.
Fossils Remains of living creatures found in sedimentary rock. They are created when the organic matter of a plant or animal decays and creates a mold. The hard remains such as the skeleton are replaced by minerals to create a reproduction of the plant or animal.
Rock cycle A system that constantly forms new rock and breaks down old rock to be reformed again. Rock is continously moving through the cycle. Changes may occur over millions of years.
Determining the age of rocks Two methods are used Superposition and radioactive dating
Superposition The layering of rock can give a relative age when compared to one another. The oldest will be found on the bottom and the newer rocks will be on top as long as they are undisturbed. Pros: quick and relatively easyCons not exact, not always accurate
Radioactive dating As Isotopes in rock break down they emit a radioactive signature. By comparing the amount left and amount of material produced, an absolute age can be determined.Pros: Exact age can be found. Movenent of rock makes no difference. Cons: time consuming
Weathering Cemical and physical changes in rock due to exposure to weather.
Physical weathering The shape of rocks are changed as particles carried in the wind, water/ice and plants move soft materials or break away materials from rocky surfaces. The Grand Canyon, Niagra falls, Stone mountain and The Devils tower were created in this way.
Chemical weathering Carbon dioxide from the air is disolved in the water which either seeps through the ground or falls as acid rain. This slowly disolves the minerals in the rock leaving behind tha harder less reactive rocks.
Erosion The movement of particles from weathered and unweathered rock from one place to another by Wind, Water, Ice or gravity.Major component of the rock cycle and in the creation of the great deserts.
Deposition As water moves sediment and stones rapid flow keeps them moving or suspended. When water deepens or widens the slowing of the water allows sediment to fall to the bottom. Large particles settle first. Minerals in solution collect and concentrate.
Created by: runerx
Popular Earth Science sets

 

 



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