This type of rock is made from cooled volcanic lava.
What is igneous rock?
100
A natural solid made of one or more minerals.
What is a rock?
100
Rocks cool much more slowly when they are formed here.
What is "underground?"
100
Through weathering and erosion, this is what an igneous rock can turn into.
What is a sedimentary rock?
100
All rocks weather at the same rate. Is this true or false?
False!
200
A type of rock that forms by little pieces of rock that build up and form layers over time.
What is sedimentary rock?
200
The process by which sediment settles out of water or is dropped by the wind.
What is deposition?
200
This is where igneous rock comes from.
What is melted lava that cools?
200
With heat and pressure, a sedimentary rock can turn into this kind of rock.
What is a metamorphic rock?
200
An example is when igneous rocks are exposed to wind, water, ice, and sunlight, they break down into sediment.
What is weathering?
300
A type of rock that changes due to heat and pressure.
What is metamorphic rock?
300
The process of wearing away rocks by natural processes.
What is weathering?
300
These rocks form from any rock that is worn down. Particles of any size can be found in these rocks. Some have big pieces in them, some have pieces as small as a grain of sand.
What are sedimentary rocks?
300
If a rock is melted and hardens again, it can be turned into this type of rock.
What is an igneous rock?
300
Rocks with softer minerals are weathered (faster/slower) than rocks with harder minerals.
What is faster?
400
This is a sedimentary rock that is formed from sand, rounded pebbles, and larger pieces of rock.
What is a conglomerate?
400
The process of moving sediment by wind, moving water, or ice.
What is erosion?
400
These types of rocks form when mineral-rich water drips from the top of a cave and/or builds up at the bottom.
What are stalactites and/or stalagmites?
400
This is an example of an igneous rock that can be changed to a metamorphic rock by heat and pressure.
What is: granite, basalt, gabbro, pumice, obsidian, rhyolite, or...?
400
This is when wind and water move sediment from one place to another, changing the way rock formations look.
What is erosion?
500
Gneiss is an example of this type of rock.
What is metamorphic?
500
The continuous process in which one type of rock changes to another type.
What is the rock cycle?
500
These rocks often form NEAR volcanoes, because of all the heat and pressure that exists in these areas.
What are metamorphic rocks?
500
These are four things that can change rocks.
What are: weathering, erosion, deposition, heat, and/or pressure?
500
This provides the nutrients in soil that plants need to grow.