Earth's physical characteristics
Parts of Cycle form a System
Water Cycle
Forces changing Earth
Earth's Resources
100
parts working together to function as a whole
What is a SYSTEM?
100
a gas made of carbon and oxygen plants need
What is CARBON DIOXIDE?
100
water falling to the Earth in the form of rain, snow, ice
What is PRECIPITATION?
100
the breakdown and wearing away of rock
What is WEATHERING?
100
resources nature produces again and again
What are RENEWABLE RESOURCES?
200
the air surrounding the Earth
What is the ATMOSPHERE?
200
movement of nitrogen between organisms and their surroundings
What is the NITROGEN CYCLE?
200
liquid changing to gas
What is EVAPORATION?
200
movement of weathered materials by water, wind or ice
What is EROSION?
200
resources nature cannot replace quickly enough to meet people's needs
What are NON-RENEWABLE RESOURCES?
300
the center of the Earth made of solid material
What is the CORE?
300
makes its own food
What are PRODUCERS?
300
gas in liquid form
What is CONDENSATION?
300
a natural structure of the Earth's surface
What is a LANDFORM?
300
resources that are naturally abundant
What are INEXHAUSTIBLE RESOURCES?
400
Earth's outer layer made of rock
What is the CRUST?
400
organisms that get energy by eating other organisms
What are CONSUMERS?
400
the gas state of water
What is WATER VAPOR?
400
the process in which materials eroded by water, wind, and ice are dropped in a new place
What is DEPOSITION?
400
fuel formed from the decayed remains of ancient plants and animals
What is FOSSIL FUEL?
500
Earth's rocky surface
What is the LITHOSPHERE?
500
organisms that feed on dead materials and waste
What are DECOMPOSERS?
500
a picture, idea or object to represent and object or process
What is MODELS?
500
flat area of land at the mouth of a river
What is a DELTA?
500
the presence of harmful substances in the air
What is AIR POLLUTION?
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