Climate
Water & Oceans
Waste & Pollution
Ecosystems
Energy
100

The long-term average of weather patterns in a region is called this.

What is climate?

100

About 97% of Earth’s water is found here.

What are the oceans?

100

The three R’s stand for Reduce, Reuse, and this.

What is Recycle?

100

When too many trees are cut down in an area, it is called this.

What is deforestation?

100

Coal, oil, and natural gas are classified as this type of energy source.

What are fossil fuels?

200

This gas, produced by burning fossil fuels, is the primary driver of modern climate change.

What is carbon dioxide?

200

Tiny plastic particles less than 5 mm in size are called this.

What are microplastics?

200

Throwing trash on the ground instead of in a bin is called this.

What is littering?

200

When a non-native species causes harm to an ecosystem, it is called this.

What is an invasive species?

200

Turning off lights when you leave a room helps save this.

What is energy?
300

This human activity is the largest source of greenhouse gas emissions globally.

What is burning fossil fuels for energy?

300

When trash enters rivers and eventually reaches the ocean, it is called this type of pollution.

What is water pollution?

300

This country produces the most plastic waste in total annually.

What is the United States?

300

The variety of life within a given ecosystem is known as this.

What is biodiversity?

300

This renewable source generates electricity by spinning turbines with moving air.

What is wind energy?

400

When forests are cut down, this important climate process decreases.

What is carbon absorption/photosynthesis?

400

Most of the freshwater people use for drinking comes from this underground source.

What is groundwater?

400

This gas, produced in landfills from decomposing organic waste, is a potent greenhouse gas.

What is methane.

400

Animals that eat only plants are called this.

What are herbivores?

400

This renewable energy source uses photovoltaic cells to generate electricity.

What is solar energy?

500

As global temperatures rise, sea levels increase mainly because of melting glaciers and this process involving warmer water expanding.

What is thermal expansion?

500

This invisible boundary underground separates surface water from stored freshwater used in wells and drinking supplies.

What is the water table?

500

When hazardous waste contaminates groundwater, it often moves through soil by this process.

What is leaching?

500

This type of organism breaks down dead plants and animals and returns nutrients to the soil.

What is a decomposer?

500

This process in nuclear power plants splits atoms to release energy.

What is nuclear fission?