rocks CH5 Flashcards
1
Q
how are igneous rocks formed?
A
when molten rock cools and solidifies
2
Q
how are plutonic rocks formed and what are they?
A
when molten rock forces its way into rock cavities, it then cools and solidifies (granite)
3
Q
how are plutonic rocks formed and what are they?
A
when lava erupts from volcanoes, it then cools and solidifies on the earths surface (basalt)
4
Q
name 2 igneous rocks?
A
granite and basalt
5
Q
what are endogenic forces?
A
forces that occur inside the earths surface, e.g- convection currents
6
Q
what are exogenic forces?
A
forces that occur on the earths surface, e.g- mass movement
