Semester 1 Review

Front

What type of rock is formed from molten magma?

Back

Igneous rock is formed from the cooling and solidification of molten magma.

Front

What is magma called when it reaches the Earth's surface?

Back

Lava is the term used for magma once it erupts onto the Earth's surface.

Front

What natural disaster is created by earthquakes occurring on the ocean floor?

Back

Tsunamis are large ocean waves generated by underwater earthquakes.

Front

What type of tectonic boundary occurs when plates move apart?

Back

A Divergent Boundary is where tectonic plates move away from each other.

Front

What is the term for the time required for half of the radioactive atoms in a sample to decay?

Back

Half-life is the time it takes for half of a radioactive substance to decay.

Front

What type of rock is formed from the compression and cementation of sediments?

Back

Sedimentary rock is formed from the accumulation and compaction of sediments.

Front

What is the process called when rocks are changed by heat and pressure?

Back

Metamorphism is the process that transforms existing rock types into metamorphic rocks.

Front

What is the boundary called where tectonic plates slide past each other?

Back

A Transform Boundary is where two tectonic plates slide past one another.

Front

What is the term for molten rock beneath the Earth's surface?

Back

Magma is the molten rock located beneath the Earth's surface.

Front

What is the primary cause of tsunamis?

Back

Tsunamis are primarily caused by underwater earthquakes.