Rocks
Rocks
Layers of the Earth
Plate Tectonics
Rocks
100
The three types of rocks
What are: 1. igneous rocks; 2. sedimentary rocks; 3. metamorphic rocks?
100
The breaking down of minerals and rocks into small pieces (sediments)
What is weathering?
100

Middle layer; the thickest layer of the Earth

What is the mantle?

100

The slow movement of Earth's landmasses riding on continental and oceanic plates

What is continental drift?

100
Metamorphic rocks can change into other types of rocks. What kind of rocks can metamorphic rocks become?

igneous or sedimentary

200

Limestone (a rock made from sediments being cemented together)

What is: (an example of) a sedimentary rock?

200
The removal of soil by gravity, wind, and running water
What is erosion?
200
The hottest layer; made of solid iron and nickel
The inner core?
200

What are the tectonic plates constantly causing, even though we can't feel them?

Earthquakes

200
Scientists use these to provide information about life and conditions of the past.
fossils
300

A rock that has changed from one type of rock to another by heat or pressure; may also have a swirled look

What is a metamorphic rock?

300

Igneous rocks can change into other rocks. What types of rocks can igneous rocks become?

sedimentary or metamorphic

300
This increases as the depth beneath the surface of the Earth increases.
pressure?
300
The type of boundary formed where two tectonic plates come together
What is a convergent boundary?
300
Fossils are usually found in this type of rock.
A sedimentary rock?
400
Rocks that are usually found near volcanoes and are formed from the cooling and hardening of hot magma or lava
What are igneous rocks?
400
Sedimentary rocks can change into other types of rocks. What types of rocks can sedimentary rocks become?

igneous or metamorphic

400
The 4 main layers of the Earth
1. crust; 2. mantle; 3. outer core; 4. inner core?
400
The type of boundary formed when tectonic plates move apart
What is a divergent boundary?
400
The way trenches, mid-ocean ridges, and mountain ranges are formed
What is plate movement (past and present)?
500
The addition of these is needed over time for a sedimentary rock to be changed into a metamorphic rock.
What are: heat and pressure?
500
When rocks change from one form to another and back again over many years
What is the rock cycle?
500

Which of Earth's layers is the thinnest?

crust

500
When the tectonic plates of the Earth slip or slide past each other horizontally, this boundary is formed.
What is a transform fault boundary?
500
Millions of years ago, there was only one super continent.
What is Pangaea?
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