Earth's Layers/Plates
Natural Hazards
Fossils/Earth's History
Soil and Water
Waves
100

The outermost solid layer of Earth.

What is the crust?

100

A violent spinning column of air touching the ground.
 

 What is a tornado?

100

A scientist who studies fossils.

What is a paleontologist?

100

The breakdown of rock into smaller pieces.

What is weathering?

100

The highest point of a wave.

What is a crest?

200

The layer beneath the crust where plates move.

What is the asthenosphere?

200

 A large storm that forms over warm ocean water.

What is a hurricane?

200

A fossil that shows activity like footprints or burrows.
 

What is a trace fossil?

200

Water stored underground.

What is groundwater?

200

The height of a wave from rest position to crest.

What is amplitude?

300

The rigid outer layer made of the crust and upper mantle.


What is the lithosphere?

300

A giant ocean wave usually caused by an underwater earthquake.

What is a tsunami?

300

The law that states lower rock layers are older than layers above.

What is superposition?

300

 The ability of soil to let water pass through.

What is permeability?

300

The number of waves passing a point in a given time.

What is frequency?

400

 The process where one tectonic plate moves under another.

What is subduction?

400

A sudden shaking of Earth’s surface.

What is an earthquake?

400

A fossil used to determine the age of rock layers.

What is an index fossil?

400

A layer of soil with different characteristics. It contains Hummus

What is a horizon?

400

A wave that does not need a medium to travel.

What is an electromagnetic wave?

500

The hottest, innermost layer of Earth.

What is the inner core?

500

 An instrument used to measure air pressure to help predict storms.

What is a barometer?

500

The exact age of a rock or fossil in years.

What is absolute age?

500

The underground layer that holds water.
 

What is an aquifer?

500

The squeezing together of particles in a wave.

What is compression?

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