Why can water in a river be used to produce electricity?
The water is moving.
The remains of organisms that lived a very long time ago - coal, oil, natural gas
Fossil fuels
Tell whether this energy source is renewable or nonrenewable: natural gas
nonrenewable
What type of energy is this?
Hydroelectric
What type of energy is this?
Biomass
What can individuals and communities do to help protect Earth’s resources and the environment ?
Examples: Recycle. Use less electricity/ turn off lights you are not using. Do not waste water. Use hybrid cars. Put solar panels on houses. Build windmills.
Energy that extracts heat from the Earth to produce electricity
Geothermal
This energy source uses cells and gets power through an object that gives off light and heat
Solar
What are some disadvantages to alternative energy resources?
Expensive to build or set up (ex: solar panels, building dams and windmills); Difficult to store the energy; Dams and windmills affect animals and ecosystems.
What type of energy is this?
Tidal
What type of renewable energy is the most efficient and best for the future?
Solar
What type of energy is this?
Nuclear
Tell whether this energy source is renewable or nonrenewable: the sun
renewable
What type of energy is a gas used to produce electricity?
Hydrogen energy
Tell whether this energy source is renewable or nonrenewable: coal
nonrenewable
What type of energy is this?
Geothermal
This energy uses currents and waves in the water to produce energy
Waves
What type of energy is this?
Wind
Water pumped down into the Earth, heats up, and comes back as steam
Geothermal energy
What type of energy is this?
Solar
This alternative energy source uses a dam to produce electricity
Hydroelectric
Throwing away trash (starting with an "r") can be used for energy, what is it?
Recycling energy (optional: using biofuel)
Energy that uses gravity forces in water to harness energy
Tidal
This source of energy uses large turbines and isn't very powerful
Wind
What are some advantages to alternative energy resources?
1. They are renewable. 2. They create less air pollution. 3. Resources can be obtained locally.
Tell whether this energy source is renewable or nonrenewable: oil
nonrenewable
Tell whether this energy source is renewable or nonrenewable: water
renewable
Cannot be renewed or takes a long time to renew
Nonrenewable resources
Extracting chemical energy that is stored in plants from photosynthesis is what type of energy?
Biomass
A nontraditional source of energy that is not from fossil fuels
Alternative energy source
The electrical power produced by falling water that turns a turbine generator
hydroelectric power
What type of energy is this?
Waves
Tell whether this energy source is renewable or nonrenewable: wind
renewable
A resource that is obtained from the Earth in the environment
natural resource
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