form of stored energy found in fossilized plants and animals
fossil fuels
energy from sources that don't run out
renewable energy
the type of energy that is in motion
kinetic
energy can not be created or destroyed, only _____________
transformed
energy source which uses heat from inside the earth to provide heating for homes
geothermal energy
energy types that come from living thing things, such as corn and sugarcane
biofuels
the type of energy that is stored
potential
fossils can form a gas called methane, which we call _____________ gas
natural
energy from the sun
solar energy
methane gas, oil reservoirs, and coal all come from this energy source
fossil fuels
energy is protected and preserved; we can't run out of it or make new energy
law of conservation of energy
the process of splitting atoms is called nuclear __________
fission
energy obtained by splitting atoms
nuclear energy
solid energy resource made up of dead plants that turned into carbon
coal
type of potential energy dependent upon gravity
gravitational energy
some underground fossils formed huge lakes of oil deep in the earth; these lakes are called
_______ _______
oil reservoirs
energy obtained by harnessing water movement
hydropower
solar electricity (not just heat) is formed using these important pieces
solar cells
the sun's heat is used only to warm things with these collectors
thermal collectors
potential energy which is in the form of fuel, such as our food, is called
chemical energy