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Vocabulary Week 5
Mrs.Marten's Wellington Middle School Science Class
10
Science
7th Grade
09/22/2011

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Cards

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