Unit 4 Natural World

How do the rocks eventually turn into soil?

• You can dig a hole and put them in it.

• Use a shovel and place soil over them.

• The rocks weather over a very long period of time.

• If you plant them, they can change into soil.

A natural resource that has minerals from decomposing plant and animal remains and weatherd rock is...

• pond water

• a tiger

• soil

• a fern

How can a large rock become part of soil?

• bury it

• break it

• pile it up

• melt it

When rocks bang into each other, and break off into smaller pieces, this is an example of...

• weathering

• gravity

• decomposition of plants

• thermal energy

What would be a rapid change that is caoused by a lot of rain?

• volcanic eruptions

• tsunamis

• cracks in the road

• landslide

What change to the Earth's surface might be caused by an earthquake?

• landslide

• volcanic eruption

• cracks in the ground

• large waves

An earthquake will cause all BUT

• road damage

• tsunamis

• hurricanes

• landslides

A volcano changes the surface of the Earth is all these ways, but not by ...

• causing a landslide

• putting ash and gases into the air

• causing an avalanche

• creating new land

A landslide

• is when a layer of Earth's surface moves rapidly downhill

• causes magma to flows out of cracks

• slowly weathers Earth's surface

• causes Earth's surface to shake

Why can people make furniture out of wood?

• it is strong but can bend, and it comes from trees so more can be planted

• easy to make and hard to break

• once all the wood is gone no more can be found

• easily broken