Earth Science Flashcard

Front

What does the principle of uniformitarianism tell us about the past?

Back

The present is the key to future

Front

The Pacific Ocean is shrinking, while the Atlantic Ocean is expanding. Which type of plate boundary must be involved in each location?

Back

Pacific Ocean, convergent; Atlantic Ocean, divergent

Front

In which layers does the theory of plate tectonics explain the movement of the plates by convection cells?

Back

Upper Mantle

Front

Which event may occur at a transform plate boundary?

Back

Earthquakes

Front

Which instrument is used to detect earthquakes?

Back

Seismograph

Front

Which statement about S waves is true?

Back

S waves are also called secondary waves

Front

Why is coal not a mineral?

Back

It is organic

Front

In a laboratory, you scratch an unknown mineral on a piece of unglazed porcelain. Which property are you trying to determine?

Back

Streak

Front

Which choice best describes an igneous rock that formed from cooling lava?

Back

Fine Grained

Front

How are sedimentary rocks that form from evaporating seawater classified?

Back

Chemical