Weathering
Landforms
Water Cycle
How Rocks Form
Rock Cycle
100
______________ is the natural breakup of rock at Earth's surface.
weathering
100
Earth has different ________________ features.
physical
100
Water can be liquid, solid or ________________.
gas
100
What are the three types of rocks?
Igneous, Metamorphic, Sedimentary
100
When rocks change from one kind to another it is called the ___________________________. (two words)
rock cycle
200
Weathering breaks rocks into small pieces called __________________.
sediment
200
What is a flat area of land surrounded by hills or mountains?
valley
200
Earth's __________________ contains all the water in the oceans, rivers, lakes, air and ground.
hydrosphere
200
Igneous rocks form when _______________ cools.
magma
200
What three natural processes change one kind of rock into another kind of rock.
weathering, pressure, heat
300
Wind and water ___________________, or carry, the sediment away.
Transport
300
What is a deep valley with very steep sides?
canyon
300
Water _________________, or changes into a gas called water vapor.
evaporates
300
Metamorphic rocks form under high _____________ and pressure.
heat
300
Wind and rain moving over the surface break rock down into _________________.
rain
400
The process of moving sediment is called what?
erosion
400
What are hills of loose sand grains shaped by the wind?
sand dunes
400
The water vapor cools and ___________________, or changes into tiny water droplets that form clouds.
condenses
400
Sedimentary rocks form when layers of sediment ______________ together over time.
press
400
Rocks are formed by wind, _______________ and water and change from one type into another.
heat
500
When the sediment stops moving, ___________________ takes place.
deposition
500
What is a fan-shaped area of land that forms where a river meets an ocean?
delta
500
The water ___________________, or falls to Earth as rain or snow.
precipitates
500
Rocks usually form very slowly over many ________________ of years. A. Hundreds B. Thousands C. Millions
B. Thousands
500
What is the hardest substance on earth?
diamond
M
e
n
u