Landforms
Rocks and Stuff
Natural Disasters
The Earth
Moving Earth
100

tallest landform

mountain

100

the process of change that rocks go through

rock cycle

100

sudden shaking of Earth's crust caused by plates moving along a fault

earthquake

100

scientists who study the structure of the Earth

geologists

100

A long, narrow crack in the crust where plates rub together

fault

200

piles of sand on deserts and beaches from gusts of wind

sand dune

200

formed in layers through weathering and erosion. Fossils are found in these types of rocks

sedimentary rocks

200

An overflow of water onto land that is normally dry

flood

200

Places where Earth's crust is very thin and heat rises

hot spots

200

A mountain that builds up around an opening in Earth's crust

volcano

300

animals were trapped here in sticky tar; located in Los Angeles

La Brea Tar Pits

300

formed in fire inside volcanoes

igneous rocks

300

A giant ocean wave that hits the shore

tsunami

300

Solid rock that makes up the Earth's outermost layer

crust

300

The slow process that breaks rocks down into smaller pieces

weathering

400

Only found in sedimentary rocks, they help uncover the secrets of our planet's history. 

fossils

400

formed under heat and pressure

metamorphic rocks

400

Columns of spinning wind caused from a thunderstorm

tornadoes

400

The layer of rock below the Earth's crust

mantle

400

When weathered rock gets moved by wind or water

erosion

500

region in the Pacific Ocean with great geological activity. About 75 percent of Earth's volcanoes and 90 percent of Earth's earthquakes occur here.

Ring of Fire

500

huge pieces of land that are constantly shifting

tectonic plates

500

A very large, swirling storm

hurricane

500

Liquid layer below the mantle

outer core

500

Dropping off of weathered rock

deposition

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