Slow Changes
Fast Changes
Volcanoes
Humans and the Environment
100
The breaking down of rocks
What is weathering?
100
A swirling wind over land that causes major destruction
What is a tornado?
100
The flowing hot molten rock outside the volcano
What is lava?
100

How humans negatively affect forests

What is cutting down trees?

200
The movement of rock, sand, and soil
What is erosion?
200
A severe storm over a large body of water
What is a hurricane?
200
The hot molten rock inside a volcano
What is magma?
200
The nutrients for soil
What is a humus?
300

Two things that cause erosion to occur

What are wind and water?

300
A huge wave that causes major destruction
What is a tsunami?
300
The type of rock that is formed from a volcano
What is igneous?
300

When people drive cars and throw trash on the ground, they create this problem for the Earth.

What is pollution?

400
One way to prevent erosion
What is placing rocks/planting trees?
400
The shaking of the ground that causes destruction
What is an earthquake?
400
Two effects of a volcano
What are burning and ash clouds?
400

This is something people can do instead of throwing bottles and cans in the trash.

What is recycle?

500
Lack of water over a long period of time
What is a drought?
500
where an earthquake forms
What is a fault line?
500
The state with the most active volcano area
What is Hawaii
500

When people cut down too many trees, animals can lose this.

What is habitat?