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12 terms

Motion and Design Vocabulary #3

STUDY
PLAY
Engineer
trained person who designs or builds
Mass
amount of matter in an object
Physical Change
alteration in the form, but not in the material
Chemical Change
process that alters form and composition
Solid
state of matter that has definite shape
Liquid
a substance that flows, a fluid
Gas
invisible state of matter, like air
Vapor
small particles of moisture in the air
matter
is anything that has a mass and a volume(the amount of space it takes up. It is made up of atoms or molecules.
physical property
is something you can see or observe about matter without having to change the kind of matter it is.
Law of Conservation
A law that states that matter cannot be created or destroyed by ordinary means BUT it can certainly be changed.
Heat
If something is hot, it will move faster than something that is cold.