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Large fractures in Earth’s surface that are associated with the movement of lithospheric plates are called ______________.

If iron floats in liquid mercury, then the specific gravity of iron is

The scientist ______________ is generally regarded as “the father of geology.”

Rocks solidified from molten material below ground are classified as ______________ igneous rocks.

Wood from an ancient stump has a ratio of carbon-14 to carbon-12 that is one-fourth that of new wood. About how old is the stump? (Carbon-14’s half-life is 5730 years.)

An example of igneous rock is

S seismic waves can travel only through ______________.

In terms of geologic time, we are living in the __________ eon which began about 541 millions of years ago and the Holocene Epoch which began about 0.01 millions of years ago at the end of the last ice age.

Fossils that are useful in correlating rock layers are called

A naturally occurring, crystalline, inorganic element or compound that possesses a fairly definite chemical composition and a distinctive set of physical properties is called a(n) ________________.