Earth's Layers
Crust
What are the three types of rocks?
Igneous, Sedimentary, Metamorphic
What theory explains the movement of Earth's plates?
Plate Tectonics
What are the three main types of soil?
Clay, Silt, Sand
What process forms sedimentary rock?
Sediment settling and compacting over time
What layer is made of solid and molten iron and nickel?
Outer Core
How is igneous rock formed?
Cooling of magma or lava
What causes tectonic plates to move?
Mantle convection currents
What is soil made of?
Air, water, living organisms, organic matter, rocks, and minerals
What does 'metamorphic' mean?
To change form
Name the four layers of the Earth.
Crust, Mantle, Outer Core, Inner Core
Where are fossils commonly found?
Sedimentary rocks
What happens at a convergent plate boundary?
Plates collide
How are soil types classified?
By texture and particle size
What is the correct order of the rock cycle?
Igneous rock -> Sedimentary rock -> Metamorphic rock
Which layer is responsible for Earth’s magnetic field?
Outer Core
What is an example of an extrusive igneous rock?
Obsidian
What landform results from two continental plates converging?
Mountain ranges
What is the main component of the Earth's crust?
Rocks and minerals
What is the difference between extrusive and intrusive igneous rock?
Extrusive forms on the surface, intrusive forms inside the crust
What is the lithosphere composed of?
The crust and the uppermost mantle
What causes metamorphic rocks to form?
Heat and pressure
What is a transform plate boundary?
A boundary where plates slide past each other
What are minerals considered in relation to rocks?
The 'ingredients' of rocks
What generates Earth's magnetic field?
The movement of the outer core