1
2
3
4
5
100

A strong wind that carries sand and dust through the air.

Sandstorm

100

8 1/2km= ______m

8500m

100

A sudden movement of rocks and soil down a slope. Large amount of rocks, soil, or debris moving down a slope.

Landslide

100

15 3/4m= ______cm

1575cm

100

This theory explains how the Earth's crust is made up of large plates that move and interact with each other.

Plate tectonics

200

A line where two tectonic plates meet and can cause earthquakes.

Fault line

200

The sudden shaking of the ground caused by movements in the Earth's crust.

Earthquake

200

7km 9m= ______m

7009m

200

A sudden shaking of the ground that results in an earthquake.

Seismic Activity 

200

8kg 260g= _____g

8260g

300

Estimate the height of a mountain which is 995 meters high into kilometers.

The mountain is about 1 kilometer high.
300

7 1/4km= _______m

7250m

300

4 km 350m= ______m

4350m

300

2kg 307g= _______g

2307g

300

6km 95m= _______m

6095m

400

The study of the Earth's physical structure, including rocks and minerals.

Geology

400

A scientist who studies the physical structure and history of the Earth.

Geologist

400

8 1/4m= ______cm

825cm

400

A rigid slab of rock that makes up the Earth's crust.

Plate

400

9kg 8g= ______g

9008g

500

An opening in Earth's crust through which lava erupts onto the surface.

Volcano

500

3km 5m= _____m

3005m

500

5kg 50g= ______g

5050g

500

A wave or series of waves caused by displaced water. Displacement can be caused by the seafloor lifting up or dropping down.

Tsunami

500

When rocks and soil get moved around by things like water, wind, and ice. It happens because of natural forces like gravity and weather.

Erosion