Review for rocks, minerals, and fossils

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A rock sample containing shells, minerals, and plant material would best be classified as

If a penny is scratching the surface of a mineral, which physical property is being tested?

Which rock layer has the oldest fossils?

A chemical property of a mineral is evident if the mineral

All rocks are composed of

Igneous rock are formed by

Which rock genergally has fossils?

Rocks are classified as igneous, metamorphic, or sedimentary according to