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Science Test 2 9/14/12
Test 2 9/14/12
24
Science
8th Grade
09/11/2012

Additional Science Flashcards

 


 

Cards

Term

 

 

 

Minerals

Definition

 

are natural, solid, inorganic, definate chemical composition, crystal structure due to internal arrangement of atoms.

Term

 

 

General facts about minerals

Definition
Between 2-3,000 have been identified; 
Term

 

General facts about minerals:

 

Natural elements

 

Definition

-made of 1 element such as sulfur, gold, copper & graphite.

-Important groups (compound):

siliate (Sia)

oxides

carbonates

sulfites

 

 

Term

General facts about minerals:

 

Uses for certain minerals

 

Aluminum

Definition

 packaging

 

 transportation

 

 building

Term

General facts about minerals:

 

Uses for certain minerals

 

Beryllium

Definition

 

 

genstones

 

flourescent light

Term

General facts about minerals:

 

Uses for certain minerals

 

Copper

Definition

electirc cables

 

wires

 

switches

Term

General facts about minerals:

 

Uses for certain minerals

 

Feldspar

Definition

 

glass

 

ceramics

Term

General facts about minerals:

 

Uses for certain minerals

 

Iron

Definition

buildings

 

automobiles

 

magnets

Term

General facts about minerals:

 

Uses for certain minerals

 

Calcite

Definition

 

toothpaste

 

construction

Term

 

 

Mineral hardness

Definition

 

the ability to scratch another mineral

 

Scale from 1 - 10

1 = quarts

7 = dust particles

Term

 

 

Crystal shape

Definition

 

The external structure due to internal arrangement of the atoms.

 

There are 6 basic groups of shapes with about 3 dozen variations.

Term

 

Crystal Shape:

 

6 basic groups

 

Luster

Definition

 

 

Describes how light reflects off the surface.

Term

 

Crystal Shape:

 

6 basic groups

 

Metalic

Definition

 

 

Term

 

Crystal Shape:

 

6 basic groups

 

Non-metallic

Definition

 

 

Includes dull, glossy, wavy & pearly

Term

 

Crystal Shape:

 

6 basic groups

 

Color

Definition

 

Results from the ability to absorb some wave lengths & reflect others.

Term

 

Crystal Shape:

 

6 basic groups

 

Streaks

Definition

 

Color of the powder when rubbed on a strike plate.

 

(maybe same as hard specimen or diffrent; some pains is based on powder minerals)

Term

 

Crystal Shape:

 

6 basic groups

 

Luster

Definition
Term

 

 

 

Mineral clevage

Definition

 

 

Minerals that split along flat surfaces when struck hard.

Term

 

 

 

Mineral fracture

Definition

 

 

A mineral that breaks unevenly along a rough or curred surface.

Term

 

 

 

Density

Definition

 

 

Mass volume

 

Examples of very dense minerals include g?????, magnetite & gold.

Term

 

 

 

Specific gravity

Definition

 

 

The density of the mineral compared with density of water.

Term

 

 

Special charecteristic of minerals

Definition

 

 

Some minerals will glow when place under short-wave or long-wave, ultroviolet rays, and have a salty taste.

Term

 

 

 

Special charecteristics of magnesium

Definition

 

 

 

Many iron minerals will produce an invisible magnetic force field.

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