For science
system
a set of parts that work together toward a goal or outcome
mean
the average of a set of numbers
open system
matter can get in and out of it through openings in the system
closed system
no matter can get in or out of it
matter
anything that has mass and takes up space
molecule
the smallest particle of a substance
evaporation
the process where water slowly changes from a liquid to a gas and single molecules of water leave the surface and go into the air
absorption
when light is taken in and converted to another form of energy
kinetic energy
the energy of moving things
temperature
a measure of the average kinetic energy of the particles in a sample of matter
thermal energy
the energy contained within a system that is responsible for its temperature
state of matter
whether something is a solid, liquid, or gas
heat
the transfer of thermal energy from warmer matter to cooler to matter
conduction
the transfer of thermal energy through collisions between particles
design criteria
the goals that a project must achieve in order to be successful
design constraints
the limitations on a design (such as time and budget)