Land
Changes to the earth
Rocks
Resources
The earth
100

True or False

Features of the earth include clouds, the sun and the moon. 

False

100

True or False

When magma comes out of the cracks in the earth's crust it is called lava. 

True

100

All rocks are made of _________. 

minerals 

100

True or False

The sun is an inexhaustible natural resource. 

True 

100

True or False

The Hawaiian Islands were formed by volcanoes. 

True 

200

True or False

Fresh water is found in oceans. 

False

200

________ is the wearing down of rocks over a long period of time. 

Weathering 

200

________ are nonliving, useful materials that come from the earth. 

Minerals 
200

Name three kinds of natural resources. 

inexhaustible

renewable

nonrenewable 

200

What is the inner most layer of the earth?

Inner Core

300

Where can fresh water be found?

lakes, rivers, ponds, and streams

300

The movement of soil and rocks by wind, water, or other pieces of rock. 

Erosion 

300

Rocks formed from magma or lava. 

Igneous 

300

Give three examples of earth's natural resources.

water

oil

coal

wood

gold 

300

What is the outer layer? 

crust 

400

How much of the earth's surface is covered by ocean?

3/4's

400

The movement of the earth's plates causes _______ and _______. 

volcanoes and earthquakes

400

Rocks formed from sand and clay that have been compacted together. 

Sedimentary 

400

Why is wood a renewable resource? 

Trees can grow back, but it takes awhile. 

400

What layer is right outside of the inner core? 

outer core

500

Name six of earth's features. 

mountains, hills, valleys, oceans, rivers, and lakes

500

Explain how a volcano erupts. 

When magma is forced up through the volcano, the volcano erupts. 

500

Rocks that are formed when existing rocks are subjected to heat and pressure over time. 

Metamorphic 

500

Name two things that can be recycled into something new. 

cans

bottles

newspapers 

500

What layer is under the crust? 

mantle