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Resources and Energy

Science

Resources and Energy Chapter Video

Resources and Energy Chapter Video

biomass

organic matter or animal waste that can be burned for energy
biomass Simple Definition

coal

a fossil fuel made of decayed plant material
coal Simple Definition

conservation

the careful management and use of resources
conservation Simple Definition

efficiency

the percentage of energy input that a machine converts to work output
efficiency Simple Definition

energy

the ability to do work
energy Simple Definition

fossil fuel

an energy source made of the remains of organisms that lived long ago, like coal or oil
fossil fuel Simple Definition

friction

the force that opposes motion between two surfaces that are touching
friction Simple Definition

fuel

a material that releases energy when burned, like wood, coal or oil
fuel Simple Definition

gasohol

a mixture of gasoline and alcohol that is used as a fuel
gasohol Simple Definition

geothermal energy

heat energy released from within the Earth
geothermal energy Simple Definition

heat

the thermal energy transferred from a warmer object to a cooler object
heat Simple Definition

hydroelectric energy

electricity generated from flowing water
hydroelectric energy Simple Definition

insulation

a material that slows the transfer of heat energy
insulation Simple Definition

kinetic energy

the energy of a moving object
kinetic energy Simple Definition

natural gas

a fossil fuel often found in underground rock layers
natural gas Simple Definition

natural resource

a material or an energy source in the environment, like trees, water or wind
natural resource Simple Definition

nonrenewable resource

a natural resource that is consumed faster than it can be created
nonrenewable resource Simple Definition

nuclear energy

the energy released when the nuclei of atoms are split or combined
nuclear energy Simple Definition

nuclear fission

the splitting of an atomic nucleus into smaller nuclei and neutrons, this releases energy
nuclear fission Simple Definition

nuclear fusion

the combining of two nuclei to form a single nucleus, this releases energy
nuclear fusion Simple Definition

petroleum

a black liquid fossil fuel that is nonrenewable
petroleum Simple Definition

potential energy

the energy an object has from its position or condition, like a ball on a hill or a stretched spring
potential energy Simple Definition

recycling

recovering useful material from waste for reuse
recycling Simple Definition

renewable resource

a resource that is replaced by nature more quickly than it is consumed
renewable resource Simple Definition

solar energy

the energy from sunlight
solar energy Simple Definition

temperature

how hot or cold something is, it is determined by the kinetic energy of its particles
temperature Simple Definition

thermal energy

the energy of the moving particles in an object
thermal energy Simple Definition

wave

a repeating disturbance that transfers energy through matter or space
wave Simple Definition

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