8. Sedimentary Rocks
Forms from sediment that gets cemented together under pressure.
Sandstone and shale are distinguished by the size of the sediment they contain.
Shale is made of very fine sediment. Sandstone has larger sediment than shale does.
9. Sedimentary Rocks
Forms from sediment that gets cemented together under pressure.
Limestone is a hard,
sedimentary rock, mostly
composed of calcium.
Coal is a solid carbon-rich sedimentary
rock that is usually black or brown.
11. Metamorphic
Forms forms as a result of very high pressure or high temperatures.
Gneiss is formed from granite that has been under very high pressure or high
temperatures.
Slate is formed from shale that has been under very high pressure or high
temperatures.
28. Humans can negatively impact the Earth’s
surface through everyday activities such as
digging up dirt or cutting trees. We can all do
our part by limiting or eliminating these
activities whenever possible.