Building Blocks of Matter
Science
Grade 5
Chapter 1
Vocabulary
Chapter 1

Element
 Physical property
 Chemical property
 Atom
 Atomic number
 Molecule
 Compound
 Solution
Element
 Basic
kind of matter
 Pure
 Only
one type of atoms
 Cannot be broken into smaller pieces
by physical or chemical processes
 Is in the periodic table
Physical Properties
 A property
of material
 A description
 You can see, touch, smell, hear
 You can measure it
Chemical Properties
 A property
 A result
of contact with other
materials (change or no change)
 Description of reaction
Atom
 Smallest
particle of an element that has
the same properties as the element
 Include protons and neutrons (nucleus)
and electrons
 Elements are made of one type of atoms
Atomic Number
 Number
of protons in a nucleus
 The number found above the elemental
symbol in the periodic table
 Each element has a different atomic
number
 Single most important
information of an element
Molecule
 Smallest
part of a substance
that has the same properties
as the substance
 Made from more than one
atom
 Can be made from one type
of atoms (elements) or more
two or more types of
elements (compounds)
Compound
 Kind
of matter
 Made of more than
two types of atoms
 Not found in the
periodic table
 Combination of
elements
H2O
Solution
 Mixture
 Can
be separated
 Substances are spread out
evenly
 Solute will not settle
 Water is a universal solvent
Vocabulary
Chapter 1

Element
 Physical property
 Chemical property
 Atom
 Atomic number
 Molecule
 Compound
 Solution