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WorksheetsCh1 Test Review (Scientific Inquiry & Measurement)
Total questions: 60
Worksheet time: 3hrs 36mins
Name
Class
Date
1.
A bottle contains 3.10 mL of a liquid. The mass of the liquid is 2.05 g. What is the density of the liquid?
a)
0.66 g/mL
b)
1.51 g/mL
c)
6.36 g/mL
d)
6.61 g/mL
2.
The leaves feel waxy and stiff...what type of data is this?
a)
Qualitative Data
b)
Quantitative Data
3.
Two groups of chemistry students were tested to compare their speed in solving density problems. One group had calculators, the other didn't. Which of the following was the independent variable?
a)
problem solving speed
b)
chemistry students
c)
using calculators
d)
density problems
4.
One leaf is 9 cm long...what type of data is this?
a)
Qualitative Data
b)
Quantitative Data
5.
Three redwood trees are kept at different humidity levels inside a greenhouse for 12 weeks. One tree is left outside in normal conditions. Height of the tree is measured once a week. Which of the following is a constant?
a)
type of tree
b)
humidity levels
c)
location of tree
d)
height of tree
6.
Students of different grades were given the same jigsaw puzzle to assemble. The time they took to assemble it was measured. Which of the following is the dependent variable?
a)
different grades
b)
type of jigsaw puzzle
c)
time to assemble
d)
type of puzzle
7.
The density of acetic acid is 1.05 g/mL. What is the volume of 327 g of acetic acid?
a)
0.0003 mL
b)
343.35 mL
c)
327.70 mL
d)
311.43 mL
8.
What is the mass of 53 mL of ethyl alcohol, which has a density of 0.79 g/mL?
a)
41.87 g
b)
53.00 g
c)
0.01 g
d)
67.09 g
9.
A piece of metal has a mass of 140 g and a volume of 20.0 mL. What is the density of the metal?
a)
0.14 g/mL
b)
2800 g/mL
c)
7.00 g/mL
d)
2.00 g/mL
10.
The statement, "The chunk of gold has a mass of 345 g" is a(n)
a)
observation.
b)
hypothesis.
c)
theory.
d)
inference.
11.
Which of the following is NOT a characteristic of a hypothesis statement?
a)
testable
b)
falsifiable
c)
if/then
d)
can be proven true
12.
Based on your initial observations, you predict that the presence of water could accelerate the growth of bread mold. This is an example of a(n) _____.
a)
conclusion
b)
hypothesis
c)
observation
d)
variable
13.
What is the density of 10.0 grams of liquid with a volume of 9.0 mL?
a)
0.90 g/mL
b)
1.10 g/mL
c)
90.0 g/mL
d)
1.11 g/mL
14.
A hypothesis
a)
is based on personal belief.
b)
may be disproved by a single experiment.
c)
does not have to be tested to be accepted as probably correct.
d)
is a proven fact.
15.
During a controlled experiment, a scientist isolates and tests
a)
a conclusion.
b)
a control group.
c)
a single variable.
d)
a mass of information.
16.
How does sharing ideas through peer-reviewed articles help advance science?
a)
Peer-reviewed articles are published only when ideas they contain have been accepted by most scientists.
b)
Experiments in peer-reviewed articles do not need to be reported.
c)
Scientists reading the articles may come up with new questions to study.
d)
Ideas in the articles always support and strengthen dominant theories.
17.
What is the mass of 18 mL of a liquid with the density of 2.3 g/mL?
a)
41.4 g
b)
7.83 g
c)
0.13 g
d)
1.26 g
18.
How do scientific theories compare to hypotheses?
a)
Theories are the same as hypotheses.
b)
Theories unify a broad range of observations and hypotheses.
c)
Hypotheses are the dominant view among scientists.
d)
Hypotheses combine the ideas of several theories to explain events.
19.
The solar system, atoms, and cells are usually explained using which of the following?
a)
inferences
b)
observations
c)
deductive reasoning
d)
models
20.
Which of the following is NOT a limitation to science?
a)
values
b)
religion
c)
morals
d)
genetics
21.
The purpose of peer review in science is to ensure that
a)
published results meet standards set by the scientific community.
b)
all scientific research is funded.
c)
the results of experiments are correct.
d)
all scientific results are published.
22.
Which of the following is quantitative data?
a)
hardness
b)
color
c)
taste
d)
temperature
23.
Which is the part of an experiment that serves as the point of comparison for the results?
a)
hypothesis
b)
control
c)
constant
d)
independent variable
24.
Why is the process of science not restricted to any one particular method?
a)
In order to interpret experimental evidence, it is important to perform the experiment using a variety of different scientific methods.
b)
Science is not restricted to any one method because not everyone doing science has access to the same sort of equipment.
c)
The scientist needs to be open to all possibilities and different ways of doing science in order to gain as much knowledge as possible from his/her research.
d)
What one method proves as right, another might prove as wrong.
25.
Two liquids, A and B, have densities 0.75 g/mL and 1.14 g/mL respectively. Both liquids are poured into a container. Which liquid forms a layer on top of the other?
a)
liquid A
b)
liquid B
c)
neither, they mix together
d)
not enough information
26.
What is the volume of 23.6 g of silver if the density of silver is 10.5 g/mL?
a)
2.25 mL
b)
247.8 mL
c)
0.44 mL
d)
none of these
27.
Scientists should repeat an experiment several times before making conclusions. It is important for them to do this in order to
a)
use up all of their materials.
b)
fill up a large data table.
c)
give everyone a chance to participate in the experiment.
d)
make sure they get the same results every time.
28.
Which of the following statements about science is NOT true?
a)
An experiment can be used to prove that a hypothesis is correct.
b)
Science deals only with testable hypotheses.
c)
Science deals with observations and experimentation.
d)
Experiments do not always go as planned.
29.
A student conducts an experiment to determine the effect of adding salt on the boiling temperature of water. What is the dependent variable in this experiment?
a)
amount of salt added
b)
volume of water
c)
time required for water to boil
d)
boiling temperature
30.
Scientific research usually leads to
a)
expected results.
b)
social well-being.
c)
inconclusive results.
d)
the discovery of new questions.
31.
Which of the following is qualitative data?
a)
pressure
b)
temperature
c)
color
d)
volume
32.
In a lab, you are trying to find the volume of a chunk of gold. You fill a graduated cylinder up to 50.0 mL and gently place the gold in the cylinder. You notice the level of water goes up to 67.5 mL. What is the volume of the gold?
a)
Read the final volume, 67.5 mL
b)
Add the two volumes, 117.5 mL
c)
You can't, you don't have enough information.
d)
Subtract the two volumes, 17.5 mL
33.
Which term is described as the amount of matter in an object?
a)
density
b)
mass
c)
volume
d)
length
34.
Liquid gold (19.30 g/mL), water (1.00 g/mL), sulfuric acid (1.840 g/mL) and cottonseed oil (0.926 g/mL) are placed in a graduated cylinder and layers form. List the substances from top layer to bottom layer.
a)
gold, water, sulfuric acid, cottonseed oil
b)
cottonseed oil, water, sulfuric acid, gold
c)
cottonseed oil, gold, water, sulfuric acid
d)
gold, sulfuric acid, water, cottonseed oil
35.
Which of the following is NOT considered when designing a procedure for an experiment?
a)
sample size
b)
variables
c)
number of trials
d)
must consider all of these
36.
Which best describes the purpose of science?
a)
To explain the nature of things.
b)
To propose solutions to political issues.
c)
To solve the ethical problems of society.
d)
To debate the meaning of life.
37.
Density is found by dividing
a)
volume by mass.
b)
mass by volume.
c)
mass by area.
d)
area by mass.
38.
The closeness of a measurement to its true (actual) value is a measure of its
a)
accuracy.
b)
precision.
c)
reproducibility.
d)
usefulness.
39.
What is the density of an object having a mass of 6.0 g and a volume of 21 mL?
a)
126 g/mL
b)
0.29 g/mL
c)
3.5 g/mL
d)
2.90 g/mL
40.
A bottle contains 2.1 mL of a liquid. The total mass of the bottle and the liquid together is 5.2 g. The mass of the empty bottle is 4.0 g. What is the density of the liquid?
a)
1.75 g/mL
b)
2.52 g/mL
c)
2.48 g/mL
d)
0.57 g/mL
41.
The density of aluminum is 2.7 g/cm3 and water's is 1.0 g/cm3. If you put solid aluminum into a beaker full of water, will the aluminum sink or float?
a)
sink
b)
float
c)
not enough information
42.
How does studying science help you be a better member of society?
a)
Learning the biases of science will help you know what is right or wrong.
b)
Understanding how science works will help you make better decisions.
c)
Memorizing science facts will help you become more intelligent.
d)
Knowing science will help you live without the aid of technology.
43.
How does society help advance science?
a)
Society's biases steer scientists toward studying certain ideas.
b)
Society produces technology that can be used in science.
c)
Scientists make good decisions.
d)
Society raises questions that science can help answer.
44.
Collaboration and communication are important in science because
a)
most research problems are not very complex.
b)
most scientists have the knowledge to solve any scientific problem.
c)
they increase the likelihood of a successful outcome.
d)
they keep scientists from having to repeat experiments.
45.
A student conducts an experiment to determine the effect of adding salt on the boiling temperature of water. What is the independent variable in this experiment?
a)
amount of salt added
b)
volume of water
c)
boiling temperature
d)
time required for water to boil
46.
Which best explains the importance of understanding science?
a)
It allows us to perform experiments on a variety of things.
b)
It allows us to determine which endangered species are worth saving.
c)
It allows us to understand different ways of measuring things.
d)
It allows us to be educated about issues important in today's world.
47.
Which of the following statements is an inference?
a)
You measure a plant's height every day for a week.
b)
You give a plant the same amount of water every day.
c)
Every day for a week, you collect data on a plant's movement.
d)
After watching a plant for a week, you determine it needs more sunlight.
48.
Which best describes the difference between an observation and an inference?
a)
You can record an observation; an inference is an idea based on the observations.
b)
You make an inference before you make observations.
c)
An observation is a conclusion; an inference is a hypothesis.
d)
An observation is based on evidence; an inference is not.
49.
A student is testing the effect of blue-colored light on the growth of tomato plants. What is the independent variable in this experiment?
a)
light color
b)
light intensity
c)
plant growth
d)
color of plant
50.
In a line graph, the variable on the vertical (y) axis is the
a)
variable with the largest range.
b)
variable with the smallest range.
c)
dependent variable.
d)
independent variable.
51.
An organized process used to gather observations and test a hypothesis is
a)
a problem.
b)
an experiment.
c)
an exercise.
d)
a constant.
52.
Which of the following is an example of "Draw a Conclusion & Communicate Results"?
a)
Robbie's experimental results supported his hypothesis that earthworms move away from light.
b)
Arnold saw bats catching insects after dark. He wondered how bats found the insects in the dark.
c)
Of the 26 cockroaches tested, 21 of them moved away from the cucumber slices.
d)
Sarah predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted.
53.
Which of the following would be an example of "Test the Hypothesis"?
a)
Kim's experiment showed that chicken eggshells were stronger when she gave the hen feed in which extra calcium had been added.
b)
Jordan wondered if dyes could be taken out of plant leaves, flowers, and stems.
c)
Ralph grew bacteria from the mouth on special plates in the laboratory. He placed drops of different mouthwash on each plate's bacteria.
d)
Bob read about growing plants in water.
54.
Which of the following is NOT a testable question?
a)
Are there different numbers of seeds in Delicious, Jonathan and Granny Smith apples?
b)
Why do people smoke?
c)
Will larger or smaller seeds germinate faster?
d)
Does the color of a surface affect its temperature?
55.
Which of the following is an inference?
a)
There is a baseball in my driveway.
b)
My car windshield is broken.
c)
Someone playing ball must have shattered my windshield.
d)
none of these
56.
Which of the following statements is a quantitative observation?
a)
The skin on the rhino is rough.
b)
The house is two stories tall.
c)
Marsha's jacket is blue with red trim.
d)
Samson's towel is wet.
57.
Which of the following statements is a qualitative observation?
a)
The sidewalk is 100 meters long.
b)
The bowling ball weighs eight pounds.
c)
The temperature outside is 250 °C.
d)
The jelly beans are sweet.
58.
A mechanical pencil has the density of 3 g/cm³. The mass of the pencil is 2.3 g. What is the volume of the pencil?
a)
0.77 cm³
b)
6.90 cm³
c)
1.30 cm³
d)
none of these
59.
28.5 g of iron shot is added to a graduated cylinder containing 45.5 mL of water. The water level rises to the 49.1 mL mark. From this information, calculate the density of iron.
a)
0.13 g/mL
b)
7.92 g/mL
c)
102.60 g/mL
d)
0.58 g/mL
60.
An object has a mass of 26.94 grams and a volume of 2.568 cubic centimeters. What material is it likely to be made of?
a)
Iron (7.87 g/cm³)
b)
Gold (19.32 g/cm³)
c)
Silver (10.49 g/cm³)
d)
Copper (8.92 g/cm³)
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