Fast cooling lava forms what type of mineral grains?
Large
Small or non
Intrusive igneous rocks form when magma cools:
Quickly
Slowly
Which igneous rock is darker in color and has lower silica content?
Basalt
Granite
Slowly cooling magma makes what type of mineral grains?
Small
Large
What are the two types of igneous rocks?
foliated and nonfoliated
intrusive and extrusive
Extrusive igneous rocks have:
Small/no mineral grains
Large mineral grains
Extrusive igneous rock forms from lava on Earth's surface cooling:
Quickly
Slowly
Which igneous rock is ligher in color and has high silica content?
Granite
Basalt
Intrusive igneous rocks have:
Large mineral grains
Small mineral grains
Intrusive igneous rocks form from:
Lava on Earth's surface
Magma inside the Earth