Question | Answer |
constant | a factor that doesn't change |
dependent variable | the factor whose value changes because of a change in the independant variable |
independent variable | the fact or adjusted to a different value by the experimental to see what effect it will have on the dependent variable |
hypothesis | a testable predictionused to see how something works or to solve a problems |
manipulated variable | DV |
responding variable | IV |
volume | the amount of space occupied by an object |
mass | a measurementof the amount of matter in an object |
length | the distance between two points |
control | standard for comparison that is often needed to draw a meaningful conclusion |
density | the mass per unit volume of a material; describes how tightly packed a substance's molecules |
metric conversions | Kilo, Hecto, Deca, Unit, Centi, Deci, Milli |
solid | have a definite shape and volume |
liquid | definite volume but no definite shape |
gas | no definite volume or shape |
plasma | exsists only at very high temperature |
condensation | the change of a substance from a gas to a liquid, which usually takes place when a gas is cooled to or below its boiling point |
evaporation (vaporization) | the gradual change of a substance from a liquid to a gas |
fusion | solid to gas |
solidification | liquid to solid |
ionization | gas to plasma |
recombination | plasma to gas |
thermal expansion | almost all matter expands when heated and contracts when cooled |
crystal | repeating geometric patterns |
kinetic theory of matter | all matter is made up of tiny particles in constant motion |
chemical change | the change of substances to different substances |
physical change | a change in the size, shape, color, or state of matter |
chemical properties | a characteristic of a substance that indicates whether it can undergo a specific chemical change |
physical properties | any characteristic of a material that can be observed without changing the identity of the material itself |