What You Can Learn from Rocks

What is an igneous rock?

• A rock formed from cooled lava or magma

• A rock formed from sediment

• A rock that has changed form

• A rock that is part of the rock cycle.

The process of forming a new rock from existing rocks is called the ______.

• mineral cycle

• rock cycle

• sedimentary process

• metamorphic change

What are rocks made of?

• Plants

• Animals

• Minerals

• Water

Granite is a rock made of several minerals. Which mineral can be silvery or black?

• A) Quartz

• B) Mica

• C) Feldspar

• D) Hornblende

Fill in the blank: _______ is a mineral that can be white, pink, or purple.

• Mica

• Quartz

• Feldspar

• Hornblende

Which mineral is the hardest and looks glassy?

• Pyrite

• Talc

• Diamond

• Galena

A mineral detective looks for properties other than color. One property is called ______.

• Streak

• Luster

• Hardness

• Color