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Matter and energy

matter is anything that has mass and takes up space
mass describes the amount of matter in an object
weight is a measure of the gravitational force
volume objects with the similar volumes do not always have the same mass
density is a measure of the amount of mass in a given volume
physical property observe a measure without changing the identity of the substance
chemical property describes a substance ability to change into a new substance with different properties
physical change is a change that affects one or more physical properties
chemical change occurs when one or more substance change into entirely new substances with different properties
law of conservation of mass states that in ordinary chemical and physical changes
atoms are the smallest unit of element that maintains the property of that element
element is made up of one or morre of the same kind of atom chemically combined
compound is made up of different kinds of atoms chemically combined
mixture contains a variety of elements and compounds that are not chemically combined with eachother
pure substance a sample of matter either a single element or a single compund.
heterogeneous mixture is one that does not have a uniform composition
homogenous describes something with a uniform structure
solid substance that has a volume and shape
liquid substance has a definite volume but not a definite shape
gas does not have a definite shape or volume
freezing the change in which a liquid becomes a solid
melting the change of state from a solid to a liquid
evaporation occurs slowly at a range of temperatures
boiling A rapid change from a liquid to gas
condensation is the reverse of evaporation
sublimation the change from a solid to a gas
deposition is the change in state from a gas directly to a solid
Created by: 18whitez0430