Fossil Fuels
Minerals
Soil & Water
Renewable Energy
Human Impact
100

This fossil fuel formed from ancient swamp plants.

What is coal?

100

A way to reduce the need for mining new minerals.

What is recycling?

100

An underground layer that holds groundwater.

What is an aquifer?

100

Plant matter used as a renewable fuel source.

What is biomass?

100

Building these structures changes river water distribution.

What are dams?

200

A reason why fossil fuels are considered nonrenewable.

What is they take millions of years to form?

200

The process that moves gold from rocks into streams.

What is erosion?

200

The process that breaks rock into sediment for soil formation.

What is weathering?

200

Energy from moving water in rivers.

What is hydroelectric power?

200

A farming method that reduces soil erosion on hills.

What is contour plowing?

300

Oil and natural gas formed from the remains of these organisms.

What are marine organisms?

300

A rock containing enough of a valuable mineral to be mined.

What is an ore?

300

The shrinking of this sea was caused by overuse of water for irrigation.

What is the Aral Sea?

300

The best location for solar energy due to intense sunlight.

What is near the equator?

300

The process of removing water from aquifers faster than it refills.

What is overpumping?

400

The process that turns organic material into oil under heat and pressure.

What is fossilization?

400

Gold is often found near this type of rock.

What is igneous rock?

400

Two human activities that cause desertification.

What are deforestation and overgrazing?

400

A requirement for effective wind energy production.

What is consistent wind patterns?

400

Special elements used in electronics that are difficult to recycle.

What are rare earth elements (REEs)?

500

The U.S. region where most coal deposits are found (hint: ancient swamps).

What are the Appalachian Mountains?

500

This mineral forms when seawater evaporates.

What is salt (halite)?

500

The top nutrient-rich layer of soil.

What is topsoil?

500

A disadvantage of solar energy in some regions.

What is cloud cover reducing sunlight?

500

The 1930s event caused by poor farming and drought.

What is the Dust Bowl?