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Geothermal
Energy source that uses the heat below the Earth's surface to produce steam to spin a turbine. (Renewable)
Hydroelectric
Energy source that uses moving water to spin the turbine directly. (Renewable)
Solar
Energy source that uses the heat or light energy from the Sun to form electricity. (Renewable)
Wind
Energy source that uses moving air directly to spin a turbine. (Renewable)
Biomass
Energy source that uses energy from organic matter (living things) to produce steam to spin a turbine when burnt. (Renewable)
Fossil Fuels
Non-renewable energy source created by Earths pressure
Nuclear
Non-renewable energy source created by splitting uranium to produce heat. (For our class, we called it both renewable and non-renewable).
Coal
Solid fossil fuel (non-renewable) burned for power. Creates pollution.
Oil
Liquid fossil fuel (non-renewable) burned for power. Creates pollution
Natural Gas
Gas fossil fuel (non-renewable) burned for power. Creates pollution
Battery
Electrical energy can be stored in a ___.
Sun
The source of solar power
Atmosphere
Burning fossil fuels puts too much carbon dioxide into our _ (the air surrounding our planet).
nonrenewable
Fuels that can NOT be reformed during a lifetime are said to be ___. They cannot be REPLACED
Water vapor
The only emission from a hydrogen fuel cell is ___ ___.
Generator
A turbine spins a ___ to produce electricity.
Photovoltaic
Energy from the sun is converted directly into electricity with a ___ cell.
Pollution
Electricity generated from renewable energy sources would be better for the planet because it produces little or no air ___ and will not run out.
Renewable
____ energy comes from sources that are infinite like the sun, wind, and water, or from sources that replenish themselves naturally like geothermal and biomass.
CAN BE REPLACED
Fossil fuels
Today, we primarily use ___ ___ to heat and power our homes and fuel our cars.
Earth
All of our trash and pollution must stay with us on board our "____".
Clean
We often call renewable energy technologies "___" or "green" because they produce few if any pollutants.
Wind
When the sun heats the air above the land, it rises and expands. Cooler air quickly moves in to fill the space left by the elevated air and this motion produces ___.
Conservation
Energy ___ means that you do not use energy when you do not have to.
Efficiency calculation
Useful energy out / total energy in
Global
We stop or slow ___ warming by changing the way we use energy and stop burning fossil fuels
Hybrid
___ cars use both gasoline and electric batteries. These cars have the best mileage rating of all cars.
Sustainable
Able to supply our needs today without harming future generation's needs; using a resource so that the resource is not depleted or permanently damaged
turbine
A device which blades are turned by a force (that of wind, water, or steam).
greenhouse gases
What is the name of the gases in the atmosphere that trap in heat?
water power
What is hydroelectricity / hydropower?
carbon dioxide
What is the greenhouse gas emitted when you burn fossil fuels?
renewable energy
What is the name for energy that will never run out - because it can be replaced
remains of dead animal and plant matter
What do fossil fuels come from?
motion or movement
Magnets + copper wire + ____ = electricity
solar cell
a photovoltaic cell -sun light changed to electricity
solar Panel
One way to create electricity from the sun is by focusing sunlight onto a pipe or tower using mirrors. The pipe gets so hot that it can boil water into steam. This type of energy is called ___.
Electric
___ cars get their energy from electric energy stored in batteries. When the battery runs out, it must be recharged by plugging the car into an electric power outlet.
Thermal
Solar energy can be converted to _ energy and used to heat water and spaces.
Kinetic
A form of energy that results from an object's motion.
Potential
Stored energy that can become kinetic energy,
Horizontal, vertical
The two types of wind machines based on the direction of the rotating shaft.
Hydropower
Of the renewable energy's that generate electricity, this one is used the most. 71% of renewables.