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Unit 4 Vocabulary

A review for Unit 4 Vocabulary

TermDefinition
Friction A force that acts between two touching objects and that opposes motion
balance A tool used to measure the amount of matter in an object, which is the object's mass
spring scale A tool used to measure force
matter Anything that has mass and takes up space
solubility The ability of a substance to dissolve in another substance
force A push of pull, which may cause a change in an object's motion
solution A mixture that has the same composition throughout because all its parts are mixed evenly
experiment An investigation in which all the conditions are controlled to test a hypothesis
relative density It determines whether one substance will sink or float in another substance
mixture A combination of two or more different substances in which the substances keep their identities
gravity The force of attraction between objects; such as the attraction between Earth and the objects on it
balanced forces Forces that cancel each other out, because they are equal in size and opposite in direction
variable Any condition that can be changed in an experiment
unbalanced forces Forces that cause a change in an object's motion because they don't cancel each other out
control The experimental setup to which you will compare all other setups
Created by: whardcastle