[Solar Energy]
Solar energy is renewable energy produced by the sun. It comes to Earth in the form of visible light and infrared radiation. Although the amount of solar energy reaching the Earth's surface is immense, it is spread out over a large area. Solar energy can be harnessed in a variety of ways to heat homes and businesses, heat water, grow plants and produce electricity.

1. WHAT'S ON THE ROOF OF MADISON WEST HIGH SCHOOL?

[Hydroelectric Energy]
Hydroelectric energy or hydropower is energy produced by the action of falling water turning a waterwheel, propeller or turbine. Almost all hydroelectric energy is used to produce electricity, although early pioneers built waterwheels to grind grain and operate other machinery.

2. THE WORLD'S FIRST HYDROELECTRIC ENERGY POWER STATION WAS BUILT IN WHAT WISCONSIN CITY?

[Geothermal Energy]
Geothermal energy refers to energy contained in underground rock and fluids. Thermal or heat energy DEEP within the Earth may heat water or form steam. Geothermal energy is used to power steam turbines and generate electricity, although it can be used to heat homes and other buildings. Geothermal energy resources are primarily confined to western states.

3. WHAT NATIONAL PARK HAS A NATURAL FORM OF GEOTHERMAL ENERGY?
           

[Biomass Energy]
Biomass is a plant or animal matter. Biomass fuels are created from agricultural wastes (crops), alcohol fuels, animal waste and municipal solid waste. Plant leaves convert sunlight into chemical energy, which is stored in the plants. Animals that eat the plants store chemical energy in their bodies; some of it is also stored in manure and other wastes. Biomass fuels are renewable because the raw materials can be replaced simply by growing more crops or collecting more waste.

4. BIOMASS FUELS GET THEIR ENERGY FROM THE SUN THROUGH A PROCESS CALLED:

[WIND ENERGY]
Wind energy is a clean renewable energy source produced by the daily cooling and heating patterns on the surface of the earth. Wind energy can be harnessed to produce electricity, pump water, grind grain and move sailing vessels. Wind generators consist of a steel tower, propeller blades to capture the wind and a generator. Individual wind generators are commonly built near homes or farms but may be arranged in clusters or wind farms. Wisconsin has some of the largest wind farms east of the Mississippi River!

5. WHICH TYPE OF POWER HAS NO POLLUTION?