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systems
A set of parts that work together (interact) toward a goal or outcome.
model
Representation we use for explaining a phenomenon
Variable
A factor that can change in an experiment
open system
A system in which matter can enter from or escape to the surroundings.
closed system
A system in which no matter is allowed to enter or leave
mean
the arithmetic average of a distribution, obtained by adding the scores and then dividing by the number of scores
Molecule
two or more atoms held together
control variable
a factor that is held constant to test the relative impact of an independent variable
Evaporation
The change of a substance from a liquid to a gas
independent variable
The experimental factor that is manipulated; the variable whose effect is being studied.
dependent variable
The measurable effect, outcome, or response in which the research is interested.
Condensation
The change of state from a gas to a liquid
transparent
Allowing light to pass through
opaque
not able to be seen through; not transparent
kinetic energy
the energy an object has because it is moving
temperature
the measure of average kinetic energy of the particles in a material
thermal energy
The total energy of motion in the particles of a substance
heat
having a high temperature
absorb
to soak up or take in
conduction
the transfer of thermal energy without the movement of matter
criteria
standards that must be met by the design
constraints
limitations to what can be designed
styrene/styrofoam
a light resilient foam of polystyrene
porous
full of tiny holes
vacuum insulation
an empty space with no particles and no pressure
air insulation
material used to trap air and sound
criteria
standards that must be met by the design
contraints
limitations to what can be designed
