Show:
Sedimentary
Igneous
Metamorphic
100
What are some examples of sedimentary rocks?
flint, limestone, sandstone, and, coal
100
Give some examples of igneous rock?
obsidian, granite, basalt
100
What are some examples of metamorphic rocks?
Gneiss, marble
200
Sedimentary rocks form layers which are exposed in cliffs, what is that called?
strata
200
Igneous rock contains many minerals that help what?
plants grow
300
Sedimentary rocks are formed by what?
sediment
300
What is the lightest rock on earth?
Pumice
400
Sediment is compressed over a long period of time and formers what?
Layers of rock
400
What does the word Igneous mean?
Made from fire.
500
Sedimentary are formed by sediment that is deposited over time, usually as layers at the bottom of what?
lakes and oceans
500
What is in the sky and made up of igneous rock?
The moon