BJU Science5 Chapter 1

The thin outer layer of the earth is called the...

• mantle

• crust

• core

• soil

The center of the earth is called the...

• mantle

• crust

• core

• soil

Most of the earth's mass is in the...

• mantle

• crust

• core

• soil

An inorganic substance found naturally in the earth is called...

• a mineral

• soil

• a rock

• a vein

A substance made of things that were never alive is called...

• organic

• luster

• synthetic

• inorganic

The characteristic of a mineral to break along smooth, straight lines or into flat sheets is called...

• fracture

• streak

• color

• cleavage

The color of the mark made when a mineral sample is rubbed on a harder surface is called the...

• fracture

• streak

• color

• cleavage

Rock formed by heat and pressure deep below the earth's crust is called...

• conglomerate

• igneous

• metamorphic

• sedimentary

Rock that forms when layers of sediment and organic material harden is called...

• conclomerate

• igneous

• metamorphic

• sedimentary

Rock formed from magma or volcanic lava is called...

• conglomerate

• igneous

• metamorphic

• sedimentary