Shared Flashcard Set

Details

Minerals
Minerals
28
Science
4th Grade
09/25/2007

Additional Science Flashcards

 


 

Cards

Term
Where are minerals found?
Definition
In rocks
Term
About how many different minerals are there?
Definition
2000
Term
Name at least7 different properties used to identify minerals
Definition
1. magnetism
2. shape of crystals
3. color
4. luster (shine)
5. streak color
6. effervescence (fizzing/acid)
7. cleavage/fracture
8. hardness (Moh's Scale 1-10)
9. fluorescence
10.density
11.flame test
Term
What is the difference between salt and sugar?
Definition
Salt is found in the rocks and is non-living and are made of elements. When you see salt under a microscope the shapes you see are the same. Salt is hard. Sugar is from a plant. When you look at sugar under a microscope you see many different shapes. Sugar is soft.
Term
How do minerals form?
Definition
A liquid dissolves the minerals from the rocks into elements. Then the liquid evaporates and leaves a mineral.
Term
What are the most common elements?
Definition
Oxygen and Silicon
Term
What is streak?
Definition
When a mineral is rubbed on a piece of unglazed tile and leaves a color.
Term
What is luster?
Definition
The way a mineral reflects light.
Term
What is a hardness?
Definition
The ability of a mineral to scratch another, and is measured by using a scale called Moh's scale.
Term
Name 5 ways minerals can be used.
Definition
1. powder and paint
2. coins
3. plaster
4. iron
5. sand paper
6. pencil leads
7. jewlery
8. glass
9. pipes
10.dental work
Term
What is the softest mineral?
Definition
Talc
Term
What is the hardest mineral?
Definition
Diamond
Term
Do all minerals occur as single elements?
Definition
No, some minerals such as carbon, comes as a single element. But other elements such as quartz are a compound (which is a combination of elements).
Term
The hardest form of carbon is what mineral?
Definition
Diamond
Term
The soft form of carbon is what mineral?
Definition
Graphite
Term
What mineral is your birthstone?
Definition
Turquoise
Term
What are all rocks made from?
Definition
Minerals
Term
What is effervescence?
Definition
To give off bubbles of gas (the fizzing acid test).
Term
What can you make from Quartz?
Definition
Sandpaper, Glass, concrete, paints, soap.
Term
What can Diamonds be used for?
Definition
Cutting edges of saws and drills and Jewerly
Term
What can Talc be used for?
Definition
Talcom Powder
Term
What can Hematite be used for?
Definition
Steel and paint
Term
What can Graphite be used for?
Definition
Pencil lead and lubricants
Term
Compare Diamonds to Graphite.
Definition
Graphite is made from carbon, but diamonds are made from carbon AND graphite. Diamonds are hard, clear, shiny, expensive and crystal shaped. Graphite is soft, colored grey, cheap, dull and cubic shaped.
Term
What is Halite used for?
Definition
Salt, fertilizer and food preservatives.
Term
What is Cleavage?
Definition
The way a mineral breaks along a flat surface.
Term
What is density?
Definition
How heavy an object is compared to how much space it takes up.
Term
What is fracture?
Definition
The way a mineral breaks along an uneven surface.
Supporting users have an ad free experience!