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What is the outermost layer of the earth?
crust
How do scientists "see" beneath the earth's crust?
seismic waves
What is the innermost part of the earth?
inner/outer core
What is the part of the earth that the crust moves on?
Mantle
What is magma?
liquid rock under the surface of the crust
Is coal a rock even though it is organic?
Yes
How do rocks change form?
Heat, pressure, time
What are rocks made from?
Minerals and bits of organic material; small pieces of other rocks
When do larger crystals form in igneous rock?
Cooling slowly--time to form air pockets
Do all rocks sink in water?
No; example: pumice floats
What type of rock is sandstone? Sedimentary, metamorphic, or igneous?
Sedimentary
What do fossils prove?
They don't prove evolution or divine creation, but they support the idea that fossils could be created in thousands of years, not just millions
Where is natural gas nearly always found? Near what?
Oil deposits
Can metamorphic rock form at low temperatures?
No, needs heat, pressure, and time
Why is color an inaccurate way to identify a mineral?
Minerals are various colors; many minerals are the same color
What is one of the most active volcanic countries in the world?
Indonesia
