Water
Sun
Earth
Chemical
Calculations
100

This is technical term for a dam

What is water impoundment?

100
The direction the windows should be facing in a passive solar energy design for a house in the northern hemisphere.

What is south?

100

This is how electricity is generated from geothermal energy.

What is a turbine?

100

This is the idea of using steam from an electrical generation plant to heat nearby buildings.

What is cogeneration?

100

This is the largest renewable source of electricity generation in the United States is

What is hydroelectric?

200

A stair-like structure that allows migrating fish to navigate through a water impoundment system.

What is a fish ladder?

200

This type of renewable energy does not get it's energy from the sun.

What is either geothermal or hydrogen fuel cells?

200

In less developed countries, this fuel source is most commonly used for heating and cooking.

What is biomass?

200

This uses hydrogen to generate electricity that runs the motor for a vehicle.

What are (hydrogen) fuel cells?

200

This is the fastest-growing renewable energy source.

What is wind?

300

This city in the the Pac Northwest uses hydroelectric power to provide a lot of electricity to it's residents because it rains a lot there allowing many of it's rivers and lakes to be very full.

What is Seattle?

300

This type of energy uses the photons from the sun to excite electrons that result is a flow of current.

What are photovoltaic cells?  (PV cells)

300
This location would be the best choice for a geothermal energy plant.

What are tectonic plate boundaries?

300

Hydrogen fuel cells generate electricity by combining hydrogen and oxygen, emitting only these two things in the atmosphere.

What is water and heat.

300

It costs this much a year to run a machine that uses 1kW of electricity when it's in use.  It is run four 12 hour days per week and electricity costs $0.25 per kWhr.

What is $624?

400

Water is not the only thing that is held back as a consequence of a hydroelectric power plant.  Sediment is also blocked from going downstream.  The environmental consequence of this is this.

What is coastal erosion?

400

This is the biggest limitation of wind energy.

What is intermittent?

400

Some students think ground water heat is a geothermal energy source.  However, the energy really originates here.

What is the sun?

400

This are released during the production of photovoltaic solar cells (PV cells) and has a negative impact on the environment?

What are toxic metals?
400

This is the formula for percent change.

What is amount of change over original amount times 100.

500

This is the largest dam in the world.

What is the Three Gorges Dam in China?

500

This type of energy actually solar and NOT geothermal.  It uses the ground that has been heated up by the sun to heat pipes.

What are ground source heat pumps?

500

The heat source is replenished by the Earth's internal processes, provided it is managed sustainably.  That means that geothermal energy is this.

What is potentially renewable?

500

This is how hybrid cars charge their batteries without getting plugged in.

What is when the brakes are applied.

500

A restaurant dishwasher draws 1.0W of power to operate and is in operation 2,900 hours a year.  This is the amount of kWh it uses in a year.

What is 2.9kWh?

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