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100

What are the four "spheres" of Earth?

Biosphere geosphere Atmosphere Hydrosphere

100

What is the process in which water turns from a liquid to a gas?

Evaporation

100

Wearing away and movement of rock and sediment, often by water, wind, glaciers, and waves.

Erosion

100

Over millions of years, the carbon in dead plants and animals that are put under heat and pressure are converted into

Fossil Fuels

100

Natural event that can cause damage

Natural Hazard

200

What is the sphere containing all life on earth?

Biosphere

200

What is the process called when small water droplets form on small particles on dirt in the sky?

Condensation

200

The largest carbon "sink" in the world is

ocean

200

The physical breaking down of rocks

What is weathering

200
Preparing ahead of time for disasters

Preparedness

300

What is the sphere containing all of the water on earth including oceans, streams, lakes, and ponds?

Hydrosphere

300

What is it called when water drifts off the surface of the land toward rivers, lakes, or ocean

runoff

300

This is one way that humans alter the carbon cycle. This allows us to generate electricity, power cars, and run factories.

Burning Fossil Fuels

300

The process by which carbon is moved from dead animals to the ground

What is decomposition

300

Using resource without harming future generation

Sustainability

400

What is the sphere containing the air, clouds, and weather?

Atmosphere

400

A naturally abundant, nonmetallic element that occurs in all organic compounds and can be foudn in all known forms of life.

Carbon

400

What is the energy source that drives the water and carbon cycles?

The sun

400

Includes living things and their environment 

ecosystem

400

Protecting natural resources

Conservation

500

What is the sphere containing all of the rocks, dirt, and soil on Earth?

Geosphere

500

A chemical reaction that occurs when plants use carbon dioxide and energy from the sun to build sugar.

Photosynthesis

500

What is meant by "alternative" or "green" energy

Renewable Energy

500

Action taken to reduce hazard

Mitigation

500

Harmful substance entering the environment 

pollution