Show:
Layers of the Earth
Minerals
Characteristics of Minerals
Uses of Minerals
Types of Rocks
100
Scientists who study the nonliving parts of the earth
Geologists
100
The loose material on the surface of the earth
Soil
100
The way a mineral reflects light.
Luster
100
A mineral that can be cut and polished for use
Gemstone
100
A hard, natural substance made of one or more minerals.
Rock
200
The center of the earth. Scientists believe that this part of the earth is very hot and under extreme pressure.
Core
200
An inorganic substance found naturally in the earth.
Mineral
200
When the particles of a mineral are in an orderly arrangement
Crystal Structure
200
Man-made
Synthetic
200
This type of rock forms from volcanic magma or lava.
Igneous
300
This part of the earth makes up most of the earth's mass.
Mantle
300
A substance that is made of things that have never been alive.
Inorganic
300
How easily a mineral resists scratching
Hardness
300
Some minerals are also ____.
Metals
300
What type of rock is obsidian?
Igneous
400
Hot, melted rock
Magma
400
The body uses minerals to ____________________________.
Grow and function properly
400
This scale compares the hardness of minerals
Mohs Scale
400
Metals are usually found in rocks called _____.
Ores
400
Which rock forms from decayed matter?
Coal
500
The outer layer of the earth
Crust
500
The color of the mark that is made when a sample is rubbed on a harder surface.
Streak
500
The breaking of a mineral along smooth, straight lines or into flat sheets.
Cleavage
500
Metals can be combined to increase their _____.
Strength
500
This type of rock forms by heat and pressure deep below the earth's crust.
Metamorphic Rock