Igneous Rocks

Choose all that apply to Magma

• hot molten rock that is less dense than the surrounding rock

• erupts from volcanoes

• melts overlying rock changing the rocks composition

• rises up through faults, cracks and weak spots in the Earths crust

Hot molten rock is _____ dense than surrounding rock

Trapped ______ forms igneous rocks below the Earth's surface

Lava cools ______ at the surface forming _______ crystals

Tags

NGSS.MS-PS1-4

Most igneous rocks are soft and weak

• true

• false

Mafic refers to ______ ; felsic refers to ______

The current position of the igneous rock determines where it was formed

• True

• False