5th Grade Science Unit 2 Vocabulary
Textbook, SAMS, and external
vertical team words
Mrs. Thornburg’s version
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
What do we call one of the very small parts in the
nucleus of an atom that carries a positive electrical
charge?
Proton
What do we call one of the extremely small parts in
the nucleus of an atom that has no electrical charge?
Neutron
What do we call a tiny particle that moves around
the nucleus of an atom? (It carries a negative
electrical charge.)
Electrons
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 it when something seems to
disappear when mixed with liquid?
Dissolve
What do we call a mixture made up of a substance
that has been dissolved in a liquid?
Solution
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
What do we call anything that has weight and takes
up space as a solid, liquid, or gas?
Matter
What do we call the amount of physical matter an
object contains?
Mass
What do we call a unit such as ounce, pound or ton,
that is used for measuring?
Weight
What do we call the amount of space taken up by a
three-dimensional shape such as a box or a room?
Volume
What do we call a tool that measures an object’s
mass?
Balance
What do we call something that measures forces,
such as weight or friction, or heat and cold?
Scale
What do we call a tool used to make quantitative
observations of the volume of liquids?
Graduated cylinder
What do we call an observation that involves
numbers or measurements?
Quantitative observation
What do we call an observation that does not involve
measurements or numbers?
Qualitative observation
What do we call a substance that is hard and firm,
not liquid or gas?
Solid
What do we call a wet substance that pours?
Liquid
What do we call a substance, such as air, that will
spread to fill any space that contains it?
Gas
What do we call changing from a liquid to a gas?
Evaporation
What do we call changing from a gas to a liquid?
Condensation
What do we call the temperature at which a liquid
that has been heated turns into a gas?
Boiling point
What do we call the temperature at which a liquid
turns solid or freezes?
Freezing point
What do we call the temperature at which a
substance changes from a solid to a liquid because of
heat?
Melting point
What do we call measurement of temperature using a
scale on which water boils at 212 degrees and
freezes at 32 degrees?
Fahrenheit
What do we call a measurement of temperature using
a scale on which water boils at 100 degrees and
freezes at 0 degrees?
Celsius