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a solid fossil fuel that formed from decayed plant material.
what is coal?
the wise use of resources so as to preserve them.
what is conservation?
a change in a substance that doesn't change the identity of the substance.
what is physical change?
energy from the sun.
what is solar energy?
anything that has mass and takes up space.
what is matter?
a natural resource that is used faster than it can be replaced.
what is a non-renewable resource?
a natural resource that can be replaced at the same rate at which it is used.
what is renewable resource?
a change that results in the formation of a new substance or substances.
what is chemical change?
the power of wind that is used to generate electric energy.
what is wind energy?
a measure of how much matter is in an object.
what is mass?
a liquid fossil fuel also known as crude oil.
what is petroleum?
an energy resource made from living things such as wood.
what is biomass fuel?
a characteristic of an object or substance that can be observed directly or measured with a tool.
what is physical property?
energy that is generated from the motion of falling water.
what is hydroelectric energy?
the size of a three- dimensional object, or how much space an object takes up.
what is volume?
a gaseous fossil fuel.
what is natural gas?
a large machine, powered by mechanical energy, that produces electricity.
what is turbine?
a characteristic of a substance that determines how it will behave during a chemical reaction.
what is chemical property?
a form of energy that results from tiny moving particles.
what is electricity?
the measure of an object's mass divided by it's volume.
what is density?
a nonrenewable resource formed from the remains of organisms that died millions of years ago.
what is fossil fuel?
energy that comes from heat within the earth.
what is geothermal power?
the process by which new substances are formed.
what is chemical reaction?
a machine that uses magnetic force to produce electricity.
what is generator?
a natural resource that can be converted into a form of energy that can do useful work.
what is energy resource?