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Final Exam

spring scale an instrument used to measure the pull of gravity on a object
relative density determines whether one substance will sink or float in another substance. (dense)(less Dense)
solutions evaporation and thermal energy is used to separate salt and water
mixtures two or more substance that do not form another substance
air resistance a force that opposes the motion of an object through the air
texture property used to describe how something feels
friction rough road
force an object can change the speed (acceleration)
variable is a condition factor that changes in an investigation so the effects can be observed
relabillitly (accuracy)of the result
accelerates when pulling a wagon the wagon
Inclined plane a screw,pulley,and a wedge.
Photosynthisis energy from the sun into sugars
sound waves also known as longitudinal waves
light waves is a form of energy