A. What is matter?
Matter is anything that has
mass and takes up space.
B. Why is air matter but light is not?
Air has mass and takes up
space, while light does not.
C. What are physical properties?
Physical Properties of a substance
are properties that can be
observed without changing the
identity of the substance.
D. What is the difference between
weight and mass?
Mass is the amount of matter in an
object. Mass is measured in grams using
a balance scale. Mass is constant and
does not change when your location
changes. Weight is the measurement of
the pull of gravity on an object. Weight
depends on gravity, which can change
depending on where the object is
located. Weight is measured in Newtons
using a spring scale.
E. What is volume?
Volume is the amount of space that
matter takes up. The volume of
liquid is measured in milliliters
using a graduated cylinder. Solids
are measured with a ruler in cubic
centimeters (cm3) using the
formula length x width x height. 1
mL = 1 cm3
F. Example of Conductivity:
Aluminum and copper are good
conductors. Glass, rubber, and
plastic restrict the flow of heat and
electricity. They are poor
conductors.
G. Example of : Malleability:
Gold is very malleable metal it is
easy to shape.
H. Example of Ductility:
Metals are ductile. Copper is used
to produce wires for conducting
electricity.
I. Example of Hardness:
The harder the material is, the
more it resists scratching.
Diamonds are the hardest
substance.
J. How do the physical properties of
iron and copper compare?
Iron is attracted to magnets, but
copper is not.
6. Which is not a physical property
used to identify substances? Pg 57
A. hardness
B. odor
C. beauty
D. color
7. Which tool would be used to
measure the mass of an object?
pg 57
A. spring scale
B. balance
C. graduated cylinder
D. beaker
K. What is density?
Density is the measurement of how
much mass fits within a certain
volume. Density is measured in
grams per cubic centimeter (g/cm3)
L. How does density affect an object’s
ability to float?
An object floats when its density is
less than that of the liquid in which
it is place.
M. A sheet of aluminum foil is ripped into
two smaller pieces. How do the densities of
the smaller pieces compare to the density of
the original piece?
They are the same.
6. A student knows the mass of an object. What
other variable does the student need to know to
calculate the object’s density? Pg 67
A. color
B. weight
C. volume
D. length
7. Which would be most useful for
identifying an unknown liquid? Pg 67
A. weight
B. volume
C. mass
D. density
N. What are states of matter?
A form that matter can take. The 3
states of matter are solid, liquid,
and gas.
O.
solid
shape
volume
movement
attractive
forces
liquid
gas
O.
shape
volume
movement
attractive
forces
solid
 definite
liquid
 No definite
gas
 No
definite
 definite
 definite
 No
definite
 Fixed  Sliding past  Fast and
vibrating
one
far apart
another
 strong
 Weaker
 Very
than solid
weak
P. What is temperature?
 Temperature is a measure of the
average kinetic energy of the
particles in a material.
Q. Explain what happens to water when
you add or remove energy.
If an ice cube absorbs enough energy,
it can change into liquid water. If
enough energy is added to the liquid
water, it can change into a gas. When
energy is removed from water vapor it
can change into a liquid. Liquid water
that loses energy can change into ice.
R. What
is the following
temperature for WATER for each
Temperature
temperature
increasing
temperature
decreasing
temperature
increasing
temperature
decreasing
Energy
Boiling point
Condensation point
Melting point
Freezing point
Celsius Fahrenheit
R. What
is the following
temperature for WATER for each
Temperature
temperature
increasing
temperature
decreasing
temperature
increasing
temperature
decreasing
Energy
Boiling point
Celsius Fahrenheit
1000 C
2120 F
Condensation point
1000 C
2120 F
Melting point
00 C
320 F
Freezing point
00 C
320 F
S) Fill in the table below
explaining the change in state
Change of state
vaporization
boiling
evaporation
condensation
melting
freezing
sublimation
state
state
S) Fill in the table below
explaining the change in state
Change of state
vaporization
boiling
evaporation
condensation
melting
freezing
sublimation
state
liquid
liquid
liquid
Gas
solid
liquid
solid
state
gas
gas
gas
liquid
liquid
solid
gas
6. Which happens to an object as its temperature
increases? Pg 83
A. its mass increases
B. Wits particles move more slowly
C. its particles move faster
D. its particles stop moving
7. During which change of state do the particles
in a material become closer? pg 83
A. vaporization
B. condensation
C. boiling
D. melting
T. What are chemical properties?
The ability of a substance to
combine with or change into one
or more new substances.
U. What are some examples of
flammable/combustible substances?
Paper, wood, hydrogen, gasoline
V. What happens when potassium is placed
in water? (figure 24)
It reacts violently and often
produces fire.
W. A substance rusts when exposed to
water. Is this a chemical or a physical
property? Explain how you know
A chemical property is the ability
of a substance to combine with
another substance to form a new
substance. Since rust forms when
exposed to water, it is a chemical
property of the substance.
6. Which is a chemical property of a
substance? Pg 93
A. density
B. mass
C. yellow powder
D. reacts with water
7. Which warning refers to a chemical property
of the material? pg 83
A. fragile
B. flammable
C. handle with care
D. shake well
X. What is a physical change?
A physical change alters the form
of an object without changing what
type of matter it is.
Y. What are some examples of physical
changes?
Change in size and shape,
sharpening a pencil, tearing a piece
of paper, filtering coffee grounds
from water, breaking glass, and
cutting fruit
Z. What do all physical changes have
in common?
All physical changes alter the form
of an object without changing what
type of matter it is.
AA. What is a chemical change?
A chemical change is a change in
matter in which the substances that
make up the matter change into
other substances. A new substance
is made with new properties.
BB. What are some examples of
chemical changes?
Making brownies, mixing baking
soda & vinegar
CC. What chemical changes affect your
life?
Cooking food, burning things to
produce heat, or rusting
DD. What are some signs that a
chemical change might have occurred?
Color change, the release or
absorption of energy, the formation
of a gas, the formation of a
precipitate
EE. What sign tells you that a chemical
change takes place when you fry an egg?
The egg white changes from clear
to white
FF. What is a precipitate?
Some chemical changes produce a
precipitate which is a solid that
forms when two liquids combine
The egg white changes from clear to
white
6. Which is an example of a chemical change? Pg
105
A. water freezes and forms ice
B. a puddle evaporates
C. iron rusts
D. a soda can is crushed
7. Suppose you mix baking soda and vinegar.
What signs might indicate that a chemical
change is occurring? pg 105
A. formation of a yellow precipitate
B. formation of bubbles
C. light is given off
D. a color change
GG. What happens to atoms during a
chemical reaction?
The atoms break their bonds with other
atoms and form new bonds with new
atoms.
HH. Could oxygen be produced from a
chemical reaction if none of the reactants
contained oxygen atoms? Explain.
No; atoms do not change their identity
during a chemical reaction. They just
change their associations with other
atoms. The atoms rearrange to form a
new substance.
II. What forms when atoms attach to other
atoms?
Chemical bonds are formed when atoms
attach to other atoms.
JJ. What are chemical equations?
Shorthand for a chemical reaction. A
chemical equation helps scientists study
a chemical reaction. It tells scientists at
a glance the reactants, the products, and
the proportions of each substance
present in a chemical reaction. Chemical
bonds are formed when atoms attach to
other atoms.
KK. In a chemical equation, what appears to
the left of the arrow?
 In a chemical equation, the reactants are
written to the left of the arrow.
• To the right of the arrow?
 Products are written to the right of the arrow in
a chemical equation.
LL. How many carbon and oxygen atoms does a
carbon dioxide molecule have? (CO2)
There are one carbon atom and two
oxygen atoms.
MM. What is the law of conservation of
mass?
Matter cannot be created or destroyed
NN. Why must the total mass of the
products equal the total mass of the
reactants in a chemical reaction?
Because matter cannot be created or
destroyed
OO. If 1 g of hydrogen combines with 16 g
of oxygen, what will be the mass of the
products?
17 grams
6. Which best describes a chemical change? Pg
115
A.
Substances change state
B.
Atoms rearrange to form matter with
different properties
C.
The form of an object changes, but its type
of matter stays the same.
D.
Solids are separated using filters
7. What causes a chemical reaction when you
prepare scrambled eggs?
? pg 115
A. breaking the shells
B. heating the eggs
C. mixing the egg yolks and the egg
whites together
D. putting pepper onto the cooked eggs