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5th Grade Matter

Key vocabularly words

QuestionAnswer
Matter Anything that has mass and takes up space.
molecule A particle formed by the chemical bonding of two or more atoms.
atom The smallest unit of an element that retains the properties of that element.
subatomic particles A process that occurs within an atom
electron A particle in the space outside the nucleus of an atom that carries one unit of negative electric charge.
neutron A particle in the nucleus of an atom that has no electric charge
proton A particle in the nuclus of an atom that carries one unit of positive energy.
physical change A change of matter in size, shape, or state without any change in identity
chemical change A change of matter that occurs when atoms link together in a new way, creating a new sustance different from the original substance
chemical reation Another name for chemical change
physical property a property that can be observed, measured, or changed without changing the substance itself
chemical property The ability of a substance to change into a new substance with different properties.
State of Matter One of three forms; solid, liquid or gas.
solid A form of matter that has a definite shape and takes up a definite amount of space
Liquid A form of matter that takes up a definite amount of space and has no definite shape
gas A form of matter that does not take up a definite amount of space and has no definite shape.
mass A measure of the amount of matter in an object
weight The force of gravity between Earth and an object.
gravity A force of attraction, or pull, between any object and any objects around it. gravity is a property of all matter.
Created by: pam.williams2