4th Science Ch. 5 Test

What is a mineral?

• a kind of vitamin

• a solid material without a definite chemical makeup

• a solid material, with definite chemical makeup

• a living material preserved in rock.

Which is NOT a kind of rock?

• fossil

• sedimentary

• igneous

• metamorphic

What are most rocks made of?

• a single kind of mineral

• two or more kinds of minerals

• hard dirt or gravel

• two or more kinds of minerals

The way a mineral shines or reflects light is called its

• brightness

• luster

• mirror

• glare

Which material is a mineral?

• diamond

• plastic

• steel

• glass

How would you find a mineral's streak?

• scratch it

• look at its color

• rub it against an unglazed tile

• break it open and observe

How would you find a mineral's hardness?

• rub it against an unglazed tile

• break it open and observe

• look at its color

• scratch it

What is NOT true about rocks?

• They can melt.

• They can break apart.

• They are usually made quickly.

• They are made of minerals and other materials.

The rock cycle explains

• how rocks are made

• how rocks fall apart

• how rocks move

• how rocks change

The tendency of a mineral to split easily along flat surfaces is called

• cleavage

• hardness

• luster

• streak