Landforms
What can be found in lakes, rivers, ponds, and streams?
fresh water
All rocks are made of _______.
minerals
What is melted rock that comes out from inside of the earth?
lava
What type of resources are useful materials that come from the earth?
natural resources
What type of resource exists in fixed amounts and can not be replaced (like oil)?
nonrenewable
How much of the Earth's surface is covered by water?
About 3/4
What are the 3 types of rock?
igneous, sedimentary, and metamorphic
What type of volcanoes can rise above the surface of the water forming islands, like Hawaii?
undersea volcanoes
What are 3 examples of natural resources?
water, oil, wood, gold, coal
__________ means making new things from old things.
recycle
Name 4 features of the earth.
mountains, hills valleys, oceans, rivers, and lakes
What type of rocks are formed from magma or lava?
igneous
What is hot melted rock deep inside the earth?
magma
What are 3 types of natural resources?
inexhaustible, renewable, nonrenewable
_________ are nonliving, useful materials that come from the earth.
minerals
What is the wearing down of rocks over a long period of time?
weathering
What type of rocks are formed from sand and clay that have been compacted and cemented together?
sedimentary
When _________ is forced up through the volcano, the volcano erupts.
magma
What type of natural resource is always available (like the sun?)
inexhaustible
When magma comes out of a volcano it is called _________.
lava
What is the movement of soil and rocks by wind, water, and pieces of rock?
erosion
What type of rocks are formed when existing rocks are subjected to heat and pressure over time?
metamorphic
The movement of the earth's plates causes what two things?
earthquakes and volcanoes
What type of natural resource can be used up, but will replace itself if used wisely (like wood)?
renewable