Water Cycle
the way that water moves around Earth in different forms
water cycle
a natural resource that can be used or or that cannot be replaced
nonrenewable resource
a landform made when sand is deposited into a mound or ridge
sand dune
throw an object away
disposal
a collection of things that work together
system
when water falls from the sky as rain, snow, hail, or sleet
precipitation
a type of rock formed by many layers of sediment hardening over a long time
sedimentary rock
a landform made of sediment deposited by a river
make something new from something old
recycle
something that repeats in a regular way
pattern
the change from gas to a liquid
condensation
a substance formed from dead organisms that can be used for energy
fossil fuel
a deep, narrow valley with steep sides
canyon
the process of protecting a natural resource
conservation
a fancy name for anything happening in the world.
phenomenon
a slow change from liquid to gas
evaporation
the process in which particles are broken away and removed from the land
erosion
a natural resource that cannot be used up or that can be replaced
renewable resource
the breaking down of landforms by natural forces
weathering