5th Grade Ch. 3B Vocab

Front

Material composing Earth's crust

Back

rock

Front

Substances that make up rocks

Back

minerals

Front

Trace in rocks from a plant or animal

Back

fossil

Front

Small deposits of igneous and metamorphic crystals in rock

Back

Gemstones

Front

Rarest, most durable, and beautiful gems

Back

precious stones

Front

A rock with metal and impurities

Back

ore

Front

Fuel from plant/animal remains; examples: coal, petroleum.

Back

fossil fuel

Front

"rock oil"; a liquid fossil fuel from remains of living creatures

Back

petroleum

Front

A substance made of hydrogen and carbon

Back

hydrocarbon

Front

Hollow space in Earth's crust large enough for a person to enter

Back

cave