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Vocabulary Week 5
Mrs. Lisa Martin's Class
11
Science
7th Grade
09/16/2011

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Cards

Term
Atom
Definition
The smallest particle of an element that can exist either alone or in combination
Term
Conservation of Mass
Definition
The principle by which matter is neither created nor destroyed when it undergoes a chemical reaction.
Term
Food Chain
Definition
A sequence of organisms within a community, each of which uses the next lower member of the sequence as an energy source.
Term
Neutron
Definition
A subatomic particle that has no charge and is found in the nucleus of an atom.
Term
Nucleus(1)
Definition
An atom's central region, made up of protons and neutrons;
Term
Nucleus(2)
Definition
A membrane-bound organelle that contains the cell's DNA and has a role in the processes such as growth, metabolism, and reproduction.
Term
Physical Changes
Definition
Process which changes a substance's form without producing a new substance.
Term
Proton
Definition
Subatomic particle with a positive charge found in the nucleus of an atom.
Term
Substance
Definition
An object that has mass and occupies space.
Term
Theory
Definition
A well-tested explanation of some aspect of the natural world.
Term
Volume
Definition
Amount of space occupied by an object.
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