What is....
rocks i,s,m
uses
more definitions
minerals and metals
fossils
100
geologist

a scientist who studies the structure of the eart

100

granite

igneous

100

slate

chalkboards

100

gemstone

beautiful minerals not yet polished

100

ruby

rarest gem

100

petrified fossils

plant and animal remains that have turned to stone

200

bedrock

unmovable layer of rock below subsoil; part of earth's crust

200

slate

metamorphic

200

graphite

pencils

200
geyser

underground spring of boiling water

200
diamond

hardest substance

200

mold fossils

formed when mud buries a plant or animal and quickly hardens

300

stalactite

a stone formation hanging from a cave; formed by evaporating water and minerals

300

marble

metamorphic

300

uranium

nuclear power

300

petroleum

oil in its natural state

300

aluminum

lightweight, rustproof, nonmagnectic

300

Studies fossils

Palentologist

400

crystal

a solid form of a substance having a definite shape, flat surfaces, sharp edges

400

sandstone

sedimentory

400

concrete

artificial rock

400

spelunker

someone who explores caves

400

iron

most useful metal

400

The Flood

When most fossils were probably formed

500

Geode

mudballs with crystals inside

500

Shale

Smells like mud when it gets wet

500

Marble

statues, countertops, floors

500

mercury

only metal that is liquid at room temperature

500

silver

best conductor of electricity

500

Amber

Can preserve whole animals 

600

Pumice

floats

600

Pumice

Igneous

600

obsidian

arrowheads, jewelery, knives

600

humus

decaying plants and animals

600

Copper

best low cost conductor of electricity

600

Extinct

no longer exists

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