Earth's Layers / Rock Cycle

The thinnest layer of the Earth is what?
1. crust
2. mantle
3. outer core
4. inner core
The hottest layer of the Earth is what?
1. crust
2. mantle
3. outer core
4. inner core
The largest layer of the Earth is what?
1. crust
2. mantle
3. outer core
4. inner core
The layer made up of melted nickel and iron is what?
1. crust
2. mantle
3. outer core
4. inner core
Rocks formed from lava are called what?
1. metamorphic
2. erosion
3. igneous
4. sedimentary
Rocks that have changed from one type of rock to another are called what?
1. metamorphic
2. erosion
3. igneous
4. sedimentary
Rocks formed from sediments are called what?
1. metamorphic
2. erosion
3. igneous
4. sedimentary
What are the two sources of sediments?
1. erosion & igneous
2. erosion & weathering
3. weathering & magma
4. magma & igneous
What is lava called what it is underground in the mantle?
1. mantle
2. magma
3. metamorphic
4. lava
The rock cycle never ends.
1. True
2. False
What type of rocks are formed in layers, are found near water sources, and may contain fossils?
1. igneous
2. metamorphic
3. sedimentary
What type of rocks are formed when molten lava cools and hardens?
1. igneous
2. metamorphic
3. sedimentary
What type of rocks are rocks that have been transformed through heat, pressure, and / or chemicals?
1. igneous
2. metamorphic
3. sedimentary