5th Grade Science Chapter 3
Vocabulary
Mrs. Thornburg’s version
Vocabulary in 5th Grade Science
Ch. 3
Physical Property
Chemical Property
Change of State
Physical Change
Chemical Change
Chemical Reaction
Law of Conservation of Mass
Mixture
Compound
Element
Molecule
Nucleus
Atom
What do we call the smallest unit of an element that
has the properties of that element?
Atom
What do we call the central part of an atom, made up
of neutrons & protons?
Nucleus
In chemistry, what do we call a substance that is
made of only one kind of atom and cannot be split
into a simpler substance?
Element
What do we call a group of two or more atoms that
are joined chemically?
Molecule
What occurs when matter changes from one state to
another, such as from a liquid to a gas?
Change of state
What do we call a change in which a substance
remains the same substance?
Physical Change
What do we call a combination of two or more
different substances?
Mixture
What do we call a trait, such as color, shape or
hardness, that describes a substance by itself?
Physical property
What do we call a property that involves the ability
of a substance to react with other materials to form
new substances?
Chemical property
What do we call a change in which a substance or
two becomes a new substance or two?
Chemical change
What do we call a change in which one or more new
substances are formed?
Chemical reaction
What do we call a substance made of two or more
different elements?
Compound
What do we call it when the mass of the products of
a chemical reaction equals that mass of the reactants?
Law of conservation of mass