NEW
Font size
S
M
L
XL
Worksheets8th grade Georgia Milestones practice test
Total questions: 62
Worksheet time: 1hrs 1mins
Name
Class
Date
1.
Which of the following is a compound?
a)
Oxygen
b)
Water
c)
Nitrogen
d)
Air
2.
Which symbol represents carbon?
a)
Ca
b)
N
c)
K
d)
C
3.
Evidence of a chemical change would be a
a)
melting popsicle
b)
spinning top
c)
spilled bucket of water
d)
rusting car fender
4.
Moisture that collects on the outside of a cold glass results from the process of
a)
evaporation
b)
condensation
c)
sublimation
d)
vaporization
5.
A hot air balloon rises because
a)
molecules become lighter when heated
b)
molecules move faster and farther apart when heated
c)
molecules are less attracted by gravity when heated
d)
molecules become charged and repel each other when heated
6.
The solid, liquid, and gaseous states of water differ from each other in
a)
the mass of the individual atoms
b)
the size of he individual atoms
c)
the net electrical charge of the individual molecules
d)
the average speed of movement of the individual molecules
7.
The solid, liquid, and gaseous states of water differ from each other in
a)
the mass of the individual atoms
b)
the size of he individual atoms
c)
the net electrical charge of the individual molecules
d)
the average speed of movement of the individual molecules
8.
Compare and contrast mixtures and compounds. Which statement is true about mixtures and compounds?
a)
Both mixtures and compounds are the same throughout
b)
Mixtures and compounds are made of two or more elements in a definite proportion
c)
mixtures must be separated by chemical methods and compounds by physical methods
d)
mixtures contain two or more elements physically combined and compounds contain two or more elements chemically combined
9.
Which symbolizes a molecule of a compound?
a)
He
b)
Be
c)
N2
d)
NaCi
10.
A different chemical substance is formed when
a)
piece of cloth is cut
b)
cup breaks
c)
candle burns
d)
piece of chalk breaks
11.
Carbon dioxide is...
a)
an element
b)
a compound
c)
a solution
d)
a mixture
12.
A chemical change combining two elements results in...
a)
an atom
b)
a compound
c)
an element
d)
a mixture
13.
All plant and animal life on Earth contains what element?
a)
sulfur
b)
carbon
c)
silicon
d)
aluminum
14.
Which is usually true about metals?
a)
Metals melt at a lower temperatures than any other elements
b)
metals always have their atoms arranged into crystals
c)
metals do not combine easily with nonmetals
d)
Metals conduct electricity more easily than nonmeals
15.
The element beryllium (Be, atomic number 4 and atomic mass 9) is right above magnesium (Mg, atomic number 12 and atomic mass 24) in the periodic table. How many more electrons does magnesium have than beryllium?
a)
5
b)
7
c)
8
d)
15
16.
Which action would result in a chemical change?
a)
crumpling several sheets of paper
b)
pounding a nail into a piece of wood
c)
peeling and slicing a carrot
d)
making blueberry muffins
17.
The amount of matter in an object is called its...
a)
weight
b)
gravity
c)
mass
d)
force
18.
A chemical change for a piece of metal would be
a)
being bent in half
b)
getting cut into two pieces
c)
being painted
d)
getting rusty
19.
Putting sand and salt together makes
a)
a compound
b)
an element
c)
a mixture
d)
a solution
20.
All of the substances on the periodic table are classified as elements because they
a)
are pure substances
b)
are composed of atoms
c)
cannot be broken down into other substances
d)
cannot be dissolved in water or other liquids
21.
Which is correct symbol for the element sodium?
a)
S
b)
Al
c)
Cl
d)
Na
22.
Which statement is true about the electrical properties of metals?
a)
metals have high electrical resistance
b)
lightweight metals are the best conductors
c)
metals an plastics are both good insulators
d)
metals are good electrical conductors
23.
A difference between physical change an chemical change is that
a)
a chemical change involves energy while physical change does not
b)
physical change involves energy while chemical change does not
c)
different kinds of molecules are present after a physical change but not a chemical change
d)
different kinds of molecules are present after a chemical change but not a physical change
24.
Silver is white metal that is an excellent conductor of heat ad electricity. The density of silver is 10.49 g/cm3. Silver does not react with water but does not react with nitric acid. Silver tarnishes when exposed to air. A physical property of silver is
a)
silver reacts with nitric acid
b)
silver does not react with water
c)
the density of silver is 10.49 g/ cm3
d)
silver tarnishes when exposed to air
25.
Each element in the periodic table is assigned an atomic number. This number is the same as...
a)
the number of electrons in the atom's nucleus
b)
the number of protons in the atom's nucleus
c)
the number of neutrons in the atom's nucleus
26.
Which shows only a physical change in the wood?
a)
a tree
b)
cutting wood
c)
burning wood
d)
ashes of the wood
27.
Two or more atoms, joined covalently, that act as a unit, are called a(n)...
a)
ion
b)
atom
c)
mixture
d)
molecule
28.
During science lab, some students added small pieces of magnesium (Mg) to hydrochloric acid (HCI). They noticed bubbles formed, the test tube got hot, and the magnesium disappeared. Which of the following is a sign that a chemical reaction has taken place in this experiment?
a)
odor
b)
formation of gas
c)
decrease in tempature
d)
formation of precipitation
29.
which of these provided evidence of a physical property of one of the white powders?
a)
vinegar fizzed
b)
test tube got hot
c)
cornstarch turned black
d)
cornstarch felt slippery
30.
Which of these is an observed chemical property?
a)
color of powder
b)
density of powder
c)
powder dissolves in water
d)
powder reacts with vinegar
31.
As you move across the periodic table from left to right within a period, the elements...
a)
become less stable
b)
become more reactive
c)
change from gases to solids
d)
change from metals to nonmetals
32.
Through which of the following materials does heat travel the fasest
a)
glass
b)
metal
c)
plastic
d)
wood
33.
Which of the following is an example of kinetic energy?
a)
a child jumping rope
b)
a swimmer ready to dive
c)
a stuffed toy lying on a table
d)
firewood stacked in a fireplace
34.
Which represents kinetic energy?
a)
a bear standing in a field of berries
b)
a salmon resting in still water
c)
a bear holding a salmon it has caught
d)
a salmon leaping up a waterfall
35.
When a hair dryer is being used, one of the energy transformations that takes place is
a)
electrical to chemial
b)
electrical to mechanical
c)
mechanical to electrical
d)
chemical to electric
36.
When electrical energy is "used" by an electric light, what really happens to the energy
a)
it is given off as other forms of energy
b)
it changes matter
c)
it stops at the electric light
d)
it dissapears
37.
In which state of matter are molecules in contact with each other but free to move?
a)
solid
b)
liquid
c)
gas
38.
A car stopped at the top of the ramp has...
a)
heat energy
b)
potential energy
c)
kinetic energy
d)
mechanical energy
39.
In an amusement park a moving bumper car (car 1) collides with a bumper car at rest (car 2) and, after the collision, both cars move. If momentum is conserved, which statement is correct?
a)
The momentum of car 1 increases and the momentum of car 2 decreases
b)
The momentum of car 1 decreases and the momentum of car 2 increases
c)
The total momentum of both cars increase
d)
The total momentum of both cars decrease
40.
To pull up a bucket of water from a well, George pulled hard on a handle to wind up a rope. Which kind of energy was George applying to the handle?
a)
chemical energy
b)
frictional energy
c)
potential energy
d)
mechanical energy
41.
What is the process by which heat energy gets to Earth from the sun?
a)
conduction
b)
radiation
c)
subduction
d)
convection
42.
Which situation is an example of increasing potential energy?
a)
pulling a wagon uphill
b)
emptying a bucket of water
c)
a cat jumping from a tree
d)
a bicyclist stopping at a stop sign
43.
A pitcher throws a baseball towards the catcher and batter. Which of these has MOSTLY kinetic energy?
a)
the pitcher
b)
the ball
c)
the batter
d)
the catcher
44.
How do microwaves cook food?
a)
by using elctromagnetic waves and the process of radiation
b)
by using hot air currents through the process of convection
c)
by using the movement of charged particles through the process of induction
d)
by using direct contact of moving particles through the process of conduction
45.
Gasoline, wood, water behind a dam, and a boulder on the edge of a cliff all represents some form of potential energy. What form of potential energy do gasoline and wood have in common?
a)
heat
b)
light
c)
chemical
d)
mechanical
46.
On a cold, winter day, Sheena rubs her hands together. Stored chemical energy is transformed into mechanical energy. Due to the Law of Conservation of Energy some of the energy is also transformed into...
a)
heat energy
b)
light energy
c)
solar energy
d)
kinetic energy
47.
What form of energy is associated with the movement of charges, usually electrons?
a)
chemical
b)
electrical
c)
heat
d)
sound
48.
_____ energy is produced when a force causes a substance to vibrate, and the energy transferred through the substance in a wave.
a)
heat
b)
light
c)
mechanical
d)
sound
49.
Which term refers to the rate of change in motion?
a)
acceleration
b)
speed
c)
momentum
d)
velocity
50.
What must happen to an object in order to accelerate it?
a)
a net force must be applied
b)
some weight must be removed
c)
its frictional coefficient must be reduced
d)
it must contain momentum
51.
A car is traveling down a hill. Which if the following will affect the amount of energy the car has?
a)
how long the car is
b)
the day of time
c)
how much the car weighs
d)
the color of the car
52.
This graph shows the velocity of a car. Which statement BEST explains how the car is moving?
a)
velocity is increasing, so the car is accelerating
b)
velocity is decreasing, so the car is accelerating
c)
velocity is increasing, so the car is not accelerating
d)
velocity is decreasing, so the car is not accelerating
53.
All objects in the universe is attracted to each other by the force of
a)
effort
b)
friction
c)
gravity
d)
inertia
54.
Jeff was riding in a car. Which change demonstrates the GREATEST effort of inertia?
a)
the car makes a sudden stop
b)
the car slows down gradually
c)
the car changes into another lane
d)
the car runs out of gas and rolls to a stop
55.
Manuel is coasting on a bike. Because he is not pedaling, his bike will come to a stop. Which of these will cause his bike to stop
a)
an increase of kinetic energy
b)
Earth's magnetic field
c)
the property of inertia
d)
the force of friction
56.
Simon rolled a ball down a hill. The ball stopped before it reached the bottom of the hill. Which of these MOST LIKELY stopped the ball from rolling?
a)
mass
b)
gravity
c)
friction
d)
inertia
57.
The force that holds to Earth's surface is..
a)
gravity
b)
weight
c)
mass
d)
pressure
58.
Which is true about friction and gravity?
a)
both are forces
b)
both cause energy loss
c)
both cause things to speed up
d)
both cause heat
59.
If you travel to the moon, your weight would be about one-sixth less than it is on Earth. This s because the moon...
a)
has a smaller circumference tha Earth
b)
is much less massive than Earth
c)
rotates much slower than Earth
d)
has no water on it surface
60.
When a gas forms a liquid, which process is taking place?
a)
freezing
b)
condensation
c)
boiling
d)
evaporation
61.
Which statement about molecules in ice and the molecules in water is?
a)
The molecules in ice have more energy than the molecules in liquid water
b)
The molecules in ice contain different atoms than the molecules in liquid water
c)
The molecules in ice have more electric charge than the molecules in liquid water
d)
The molecules in ice are less free to move than the molecules in liquid water
62.
Which is not an example of a physical change?
a)
ice melting
b)
salt crystals being ground to powder
c)
water evaporating
d)
wood burning
Reset
