slow changes
rapid changes
natural resources
A little bit of this and that......
100

A process called ___________ breaks rocks into smaller pieces. 


erosion                weathering                soil

weathering

100

shaking of the Earth that is caused by the release of energy stored in the outermost layer of the Earth is called ____________.

volcano              earthquake              landslide

earthquake

100

_________ are features on Earth's surface that occur naturally.


landforms                soil              geologist

landforms

100

How can rocks become part of the soil?

Rocks are broken down into tiny pieces. 

200

___________ is the movement of weathered material by wind, water, or ice.


geologist             landslide             erosion

erosion

200

Often, when a _______________ erupts, lava flows onto the land.


landforms                 volcano               geologist

volcano

200

__________ is a mixture of rock and mineral particles.


landslide            soil        natural resource

soil

200

A volcano can change the Earth's surface in all ways except ______________.

avalanche                landslide             ash in the air

ash in the air

300

__________ is when decomposers break down dead material and waste.


soil                volcano         decomposition

decomposition

300

To suddenly become active through the release of lava, ash, and gases from a volcano is called an _______.


decomposition         soil            eruption

eruption

300

____________ is a person who studies Earth's rocks and minerals.


soil                 landslide           geologist

geologist

300
What is one way we can use soil?

to grow crops

400

What breaks down to form soil over time due to changes in moisture and temperature?

rocks

400

______________ is a large mass of soil and rock that suddenly moves down the side of a steep surface.


erosion            landslide            soil

landslide

400

Anything that people can use, such as minerals, water, plants, or soil, which comes from nature is called a _______________________.

natural resource

400

What would cause a deep split in Earth's surface?


Tornado         volcano         earthquake

earthquake

500

Describe a landslide. 

A layer of Earth's surface suddenly and rapidly moves downhill.

500
Which of these is NOT a part of soil?


dead plants             rocks               metal

metal

500

A rushing river could cause __________ to occur.


decomposition               gravity               weathering 

weathering

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