Part Three - Earth's Land

the solid outside layer of Earth

a) Crust
b) Mantle
c) Core
d) Landform

the middle layer of Earth

a) Crust
b) Mantle
c) Core
d) Landform

the center of Earth

a) Crust
b) Mantle
c) Core
d) Landform

a natural shape or feature of Earth's surface

a) Crust
b) Mantle
c) Core
d) Landform

the process by which rock is worn down and broken apart

a) Weathering
b) Erosion
c) Flow
d) Soil

the movement of weathered rock and soil

a) Weathering
b) Erosion
c) Flow
d) Soil

to move as a liquid does, to move gently and smoothly

a) Weathering
b) Erosion
c) Flow
d) Soil

the loose material in which plants can grow in the upper layer of Earth

a) Weathering
b) Erosion
c) Flow
d) Soil

the process of breaking down material from once living plants and animals; it forms the humus in the soil

a) Decomposition
b) Natural Resource
c) Renewable Resource
d) Nonrenewable Resource

a material that is found in nature and that is used by living things

a) Decomposition
b) Natural Resource
c) Renewable Resource
d) Nonrenewable Resource

a resource that can be replaced in a human lifetime

a) Decomposition
b) Natural Resource
c) Renewable Resource
d) Nonrenewable Resource

a resource, such as coal or oil, that will be used up someday

a) Decomposition
b) Natural Resource
c) Renewable Resource
d) Nonrenewable Resource

everything we eat, wear and use that comes from a natural resource

a) Product
b) Conservation
c) Reduce
d) Reuse
e) Recycle

saving resources by using them carefully

a) Product
b) Conservation
c) Reduce
d) Reuse
e) Recycle

to cut down on the amount of trash we produce

a) Product
b) Conservation
c) Reduce
d) Reuse
e) Recycle

to use a product again, either for what it was originally made or for something else

a) Product
b) Conservation
c) Reduce
d) Reuse
e) Recycle

to make new products out of used materials

a) Product
b) Conservation
c) Reduce
d) Reuse
e) Recycle