U6 Matter / Thermal Energy / Water Cycle

matter

anything that is made up of atoms & molecules and takes up space

solid

matter that has a rigid shape and volume

liquid

matter that has a set volume but no set shape

gas

matter with no set shape and no set volume

thermal energy

total HEAT energy of all the particles of an object

atom

smallest, most basic unit of matter

molecule

two or more atoms held or bonded together

kinetic

energy of motion

precipitation

states of water falling from the sky due to gravity (rain, snow, hail, sleet or mist)

evaporation

change of state from a liquid to a gas

condensation

change of state from a gas to a liquid

transpiration

evaporation of water from the leaves of a plant

collection

process in the water cycle where streams and rivers carry water back to the oceans

runoff

water that moves across the land and into streams and rivers