Key Terms
About Rocks
About Minerals
Mining
Interesting Facts
100
what is the earth made of?
rocks and minerals.
100
what are igneous rocks?
they are slowly formed when a hot liquid rock from Beneath earths surface cools and hardens
100
What are minerals?
they are elements
100
What are ores?
Ores are rocks that contain large amounts of different metals
100
What is most of the ocean floor made of?
Basalt
200
What are rocks?
Rocks are 2 or more minerals
200
What are rocks made of?
2 or more minerals
200
What are minerals made of?
Different kinds of elements
200
How has mining changed the land?
It changed the land because it ruins animals habitats
200
How can you use salt?
makes food cook faster, preserves fish, makes it taste better
300
What are minerals?
Different kinds of elements.
300
What are sedimentary rocks?
formed on top of existing rocks and made from materials that come from other rocks
300
Define colour?
Many minerals come in many colours. we can always identify minerals by colour.
300
What is smelting?
Smelting uses very high heat to separate different minerals. Without it we could not separate minerals and create useful products.
300
What does the word geology mean in the Greek language?
The study of Earth
400
What is fly ash?
Fly ash comes from coal, calcium, aluminum and iron.
400
What are metamorphic rocks?
are formed when sedimentary or igneous rocks are heated or squeezed
400
What is hardness?
Hardness of a mineral can be an important to identify a mineral.
400
What can you do with old mining areas?
Swimming pool, garden
500
What is magnetism?
Some minerals are attracted to magnet
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