Rocks Flashcards
1
Q
How many types of rocks are there?
A
There are 3 main types of rocks found on Earth and they are.
1. Igneous
2. Sedimentary
3. Metamorphic
2
Q
What are igneous rocks?
A
Rocks formed through the solidification and cooling of magma or lava. Magma is a molten rock material that originates deep within the Earth.
There are two main types of igneous rocks:
Intrusive (Plutonic) Igneous Rocks: These rocks form when magma cools slowly beneath the Earth’s surface.
Examples of intrusive rocks include granite and diorite.
Extrusive (Volcanic) Igneous Rocks: These rocks are formed when lava cools rapidly on the Earth’s surface or near the surface.
Examples of extrusive rocks include basalt and pumice.
