Arkansas History Flashcard

Front

Most __________ occur along cracks in the earth called faults. What do you think it is?

Back

earthquakes

Front

Which famous fault line runs through Arkansas?

Back

New Madrid

Front

What do we call the scientists who study how the Earth was formed and how it changes over time?

Back

geologists

Front

What are the layers of rock beneath the earth's crust that fit together like puzzle pieces called?

Back

plates

Front

What do we call the scientists who study earthquakes?

Back

seismologists

Front

What is used to measure the size and strength of earthquakes?

Back

Richter scale

Front

What are the traces of ancient plants and animals called when they are embedded in rocks?

Back

fossils

Front

What are the small rivers that empty into larger rivers called?

Back

tributaries

Front

What type of rock is made of sediment that's been pressed together over time?

Back

sedimentary

Front

Luna and Ethan are on a magical journey to discover how rocks are formed. They stumble upon a volcano and watch as the melted rocks cool down. What type of rocks do they see forming?

Back

igneous