Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why

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
Know
remaining cards
Save
0:01
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:
Retries:
restart all cards




share
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

8H Rocks

Key words

TermDefinition
Eruption When lava or ash comes out of a volcano
Volcano A mountain that shoots out molten rock
Cement Building material made using limestone and other materials. Also means ‘stick together’.
Concrete A building material made by mixing sand, cement and gravel with water
Crystal A grain in a rock that interlocks with other grains
Gabbro A type of igneous rock with large crystals
Geologist A scientist who studies rocks of the Earth
Grain A distinct part of a rock, made of one or more minerals
Granite A type of igneous rock with large crystals
Gravel Small pieces of rock used in building
Interlocking When crystals fit together with no gaps between them
Limestone A sedimentary rock made from the shells of dead sea creatures (calcium carbonate)
Permeable Allows water to soak through
Porous Contains tiny holes
Quartz A mineral that forms grains in sandstone
Rock A naturally occurring substance made of one or more minerals
Sandstone A sedimentary rock made out of grains of quartz
Sinkhole A large hole in the ground caused by limestone dissolving
Basalt An igneous rock with very tiny crystals
Crust The solid rocks at the surface of the Earth
Extrusive Igneous rocks formed when lava freezes above the ground
Gneiss A metamorphic rock formed when schist is heated and squashed more usually with bands of different colours
Igneous rock Rock made from interlocking crystals that are not in layers formed when magma or lava cools and solidifies
Intrusive Igneous rock formed when magma freezes underground
Lava Molten rock that runs out of volcanoes
Magma Molten rock beneath the surface of the Earth
Mantle The part of the Earth below the crust
Metamorphic rock A rock formed from interlocking crystals that are often lined up in layers formed by heating and compressing existing rocks
Schist A metamorphic rock formed when slate or other rocks are heated and squashed more usually shiny with flat crystals in wavy layers
Abrasion When rock fragments bump into each other and wear away
Biological weathering When rocks are worn away or broken up due to the activities of living things
Chemical weathering When rocks are broken up or worn away by chemical reactions
Erosion The movement of loose and weathered rock
Contract Get smaller
Expand Get bigger
Freeze-thaw A type of physical weathering that happens when water freezes in a crack
Glacier Ice that fills a valley and moves slowly downhill
Landslide Sudden movement of rocks and/or soil downward
Onion-skin weathering A type of physical weathering that happens when a rock is heated and cooled in a cycle
Physical weathering When rocks are worn away or broken up by a physical process
Sediment Rock grains and fragments dropped by moving air or water
Transport See Erosion
Weathering When rocks are broken up by physical, chemical or biological processes
Cementation A process in which water is squeezed out of the spaces between pieces of rock, leaving mineral salts behind that stick or cement the rock pieces together
Compaction When layers of sediment or rock are squashed by the weight of sediment above them
Deposit When moving wind, water or ice drops rock fragments or grains
Fossil The remains of a dead animal or plant that became trapped in layers of sediment and turned into rock
Marble A metamorphic rock formed from limestone
Mudstone A sedimentary rock made of tiny particles
Rock cycle All the processes that form sedimentary, igneous and metamorphic rocks linked together
Sedimentary rock A rock formed from grains stuck together
Slate A metamorphic rock with tiny crystals that are line up
Mining Obtaining metal ores or other substances from the Earth
Native state When a metal is found in the Earth as an element
Ore A rock that contains enough of a certain mineral or metal to make it worth mining
Recycling Using a material again, often by melting it and using it to make new objects
Toxic Poisonous
Created by: andrewweng0406