Name: __________________________________
Quarterly Additional Practice Questions
1. During a laboratory activity, a student combined
two solutions. In the laboratory report, the student
wrote “A yellow color appeared.” The statement
represents the student’s recorded
A) conclusion
C) hypothesis
B) observation
D) inference
2. Which statement made by a student after
examining a rock specimen is an inference?
A)
B)
C)
D)
The rock was formed by a volcano.
The rock has rounded edges.
The rock is light-colored.
The rock contains large crystals.
3. An interpretation based upon an observation is
called
A) a fact
C) a classification
B) an inference
D) a measurement
4. Which statement about a rock sample is an
inference?
A)
B)
C)
D)
The rock scratches a glass plate.
The rock was formed 100 million years ago.
The rock's mass is 254 grams.
The rock is red.
Science 7
7. In an experiment designed to find out if dogs
prefer to have food of a specific shape, it would be
best to
A) use different brands of dog food with
different shapes.
B) use the same brand of dog food, but with
different colors.
C) use the same exact kind of dog food, but with
different shapes.
D) add a special ingredient to some of the dog
food.
8. Which factor would have the least effect on the
results of an experiment designed to determine
which model plane stays in the air longest?
A)
B)
C)
D)
The color of the model planes.
The size of the wings.
The shape of the wings.
Weight distribution in the models.
9. The table below shows the number of algae that
exist after hours of living in an aquatic
environment.
5. Why is it important to accurately record the
procedures and results of an experiment?
A) So that you know what you did.
B) So that others can admire your work.
C) So that others can check to see if you did
your experiment correctly.
D) So that others can repeat your experiment to
see if they get the same results.
6. A gardener did an experiment to determine which
of the three brands of fertilizer would produce the
most growth in his plants. For three different
plants of the same species, he used each of the
three brands of fertilizer. Once a week, he made
observations for each plant. Which would have
improved the experiment?
A) Using a different species of plant for each
brand of fertilizer.
B) Mixing the fertilizers.
C) Making observations every two weeks.
D) Testing each fertilizer with more than one
type of plant.
At this rate, how many algae will there be after 6
hours?
A)
B)
C)
D)
10. Below is a graph that shows the activity of a
mouse for Monday and Tuesday.
15. A piece of copper metal is correctly placed on a
triple beam balance. The riders are all at the zero
mark except for the rider on 0-10 gram beam
which is located at the position shown.
What is the mass of the copper metal?
On Wednesday, the mouse would probably be
most active at
A) 9 A.M.
C) 9 P.M.
B) 12 noon
D) 12 midnight
A) 0.455 g
C) 0.55 g
B) 4. 56 g
D) 5.50 g
16. The diagram below shows 3 graduated cylinders.
The contents of cylinders X and Y are poured
into cylinder Z.
11. Which unit of measurement would best be used
to measure the volume of a drop of water?
A) milliliter
C) liter
B) centiliter
D) kiloliter
12. Which would be the best unit of measurement for
length of a pencil?
A) millimeter
C) micrometer
B) centimeter
D) kilometer
13. What unit would be best to weigh a teenage boy?
A) milligrams
C) grams
B) centigrams
D) kilograms
14. Which shows units of volume from smallest to
largest in the correct order?
A)
B)
C)
D)
milliliter, liter, kiloliter
liter, milliliter, kiloliter
kiloliter, milliliter, liter
liter, kiloliter, milliliter
Which letter represents the amount of liquid that
will be in container Z?
A) A
B) B
C) C
D) D
17. Base your answer to the following question on the diagrams below which represent four solid objects
made of the same uniform material. The volumes of the sphere and the bar are not given.
Which graph best represents the relative densities of the objects?
A)
B)
C)
D)
18. The data table below shows the masses and volumes of three objects ( ,
, and
).
The formula for calculating an object's density is:
Which statement about the densities of these three objects is correct?
A)
C)
is more dense than
and have equal densities.
B)
D)
19. Both the mass and volume of a substance must be
used in calculating its
A) melting point
C) boiling point
B) vapor pressure
D) density
20. A rock sample has a mass of 16 grams and a
volume of 8 cubic centimeters. When the rock is
cut in half, what is the volume and density of
each piece?
A)
B)
C)
D)
8 cm3 and 0.5 g/cm 3
8 cm3 and 1.0 g/cm 3
4 cm3 and 2.0 g/cm 3
4 cm3 and 4.0 g/cm 3
is more dense than .
and have equal densities.
21. The average velocity of an object can be
determined by the formula
A)
B)
C)
D)
22. The average speed of a plane was 500 kilometers
per hour. How long did it take the plane to travel
100 kilometers?
A) 0.2 hour
C) 0.7 hour
B) 0.5 hour
D) 5 hours
23. A runner completed the 100 meter dash in 10
seconds. The average speed was
A) 1 m/s
C) 100 m/s
27. The graph at the right represents the motion of a
body that is moving with
B) 10 m/s
D) 1,000 m/s
24. A moving body must undergo a change of
A) velocity
C) position
B) acceleration
D) direction
25. Anne traveled from her home to a friend's house.
She constructed this graph to show the
relationship between the time and the distance
traveled.
A)
B)
C)
D)
increasing acceleration
decreasing acceleration
increasing speed
constant speed
28. The graph at the right represents the relationship
between distance and time for an object in
motion. During which interval is the speed of the
object changing?
Which description is most consistent with the
graph?
A) Anne started her trip on a country road. She
stopped for lunch just before getting onto a
superhighway for the rest of her trip.
B) Anne drove briefly on a superhighway, then
on a country road, and finished her trip on a
superhighway.
C) Anne started her trip on a superhighway.
She stopped for lunch just before getting
onto a country road for the rest of her trip.
D) Anne drove briefly on a country road, then
on a superhighway, and finished her trip on
a country road.
26. The graph below shows the distance traveled by
an object plotted against time.
A) AB
B) BC
C) CD
D) DE
29. The displacement-time graph below represents
the motion of a cart along a straight line.
During which interval was the cart accelerating?
A) AB
B) BC
C) CD
D) DE
30. An object originally at rest is uniformly
accelerated along a straight-line path to a speed
of 8.0 meters per second in 2.0 seconds. What
was the acceleration of the object?
A) 0.25 m/s 2
C) 16 m/s 2
What is the distance covered by the object
between the 2nd and 6th second?
A) 8 m B) 2 m C) 6 m D) 4 m
B) 10. m/s 2
D) 4.0 m/s 2