Earth History 5 Review

Front

What is the longest time unit in the geologic time scale?

Back

Eon

Front

How do igneous rocks form?

Back

Igneous rocks form when lava and magma cool and solidify.

Front

What is the process called when rock fragments are laid down in a new location?

Back

Deposition

Front

What type of rock is formed when existing rocks are changed by heat and pressure?

Back

Metamorphic rocks

Front

Which of the following is not related to the geologic time scale: Eon, Era, Period, or Century?

Back

Century

Front

What is the second longest time unit in the geologic time scale?

Back

Era

Front

What are the three main types of rocks?

Back

Igneous, Sedimentary, and Metamorphic rocks.

Front

What is the process of breaking down rocks into smaller pieces called?

Back

Weathering

Front

What is the term for the movement of sediment from one location to another?

Back

Erosion

Front

What type of rock forms from the accumulation and compaction of sediment?

Back

Sedimentary rocks