1. What are the three types of rocks?
The three types of rocks are igneous, sedimentary, and metamorphic.
2. What is igneous rock?
Igneous rock is formed from the solidification of magma or lava. It can be either intrusive or extrusive. Intrusive igneous rock forms when magma cools and solidifies beneath the Earth’s surface, while extrusive igneous rock forms when lava cools and solidifies on the Earth’s surface.
3. What is sedimentary rock?
Sedimentary rock is formed from the accumulation and cementation of sediments. It can be divided into two categories: clastic and non-clastic. Clastic sedimentary rock is formed from the fragmentation and cementation of pre-existing rocks, while non-clastic sedimentary rock is formed from the precipitation of minerals from water.
4. What is metamorphic rock?
Metamorphic rock is formed from the transformation of pre-existing rocks due to high pressure and temperature conditions. It can be divided into two categories: foliated and non-foliated. Foliated metamorphic rock has a layered or banded appearance, while non-foliated metamorphic rock does not have a layered or banded appearance.