The efficient use of resources is called ______________.
Conservation
100
___________ means once living matter.
Biomass
100
Name three forms of energy.
Electric energy, geothermal energy, hydroelectric energy, solar energy, thermal energy, mechanical energy, and nuclear energy
100
What does geothermal energy mean?
The Earth's heat or
thermal energy from the Earth's interior
200
Energy from the sun is called.
Solar energy
200
This means a material found in nature that people use, such as soil, air, water, and fossil fuels.
Natural resources
200
A resource, such as the Sun, wind, and moving water, that can be used day after day without running out.
Renewable resources
200
What is one way to reduce the pollution that fossil fuels cause?
Use less or Use alternative fuels.
200
Why is uranium not like most metals?
Because it is radioactive.
300
Energy resources formed from the remains of plants and animals that lived more than 100 million years ago.
fossil fuels
300
What is the fossil fuel, natural gas used for?
Heating homes or cooking
300
This means electric energy generated from moving water.
Hydroelectric energy
300
What is released when energy is transformed?
Thermal energy
300
Name one way we can conserve Earth's resources.
Use public transportation or carpools,
turn off lights when they are not in use, or
recycle paper, plastic, and metals
400
A resource that cannot be replaced quickly or easily, such as fossil fuels.
Nonrenewable resources
400
Name three examples of renewable energy sources.
Biomass, windmill, geothermal, solar heating, hydroelectric energy, nuclear fission?
400
Name one way that energy is transformed in nature.
The Sun warms the Earth,
the Sun powers the weather, or
plants use solar energy from the Sun to grow
400
How does burning fossil fuels harm the environment?
Burning fossil fuels pollute the environment,
cars and factories cause air pollution,
burning fossil fuels releases carbon dioxide gases into the air that can cause global temperatures to rise slowly.
500
The process where the nuclei of uranium or other similar elements are split apart, releasing vast amounts of energy.
Nuclear fission
500
Why aren't fossil fuels not the best choice for meeting energy needs?
Fossil fuels are nonrenewable resources,
people use fossil fuels faster than nature can replace them,
or burning fossil fuels pollutes the environment
500
Wind and water spin _____________ to produce electric energy.
Turbines
500
How can renewable energy resources be used to make electricity?
Like nonrenewable resources, renewable resources turn turbines that cause generators to convert mechanical energy to electrical energy.