WorksheetsBiology Unit 1 Test Review
Total questions: 25
Worksheet time: 32mins
Name
Class
Date
1.
Which of the statements below demonstrates a student using correct lab safety procedures?
a)
Suzanne did not use all of the sulfuric acid she poured out for the experiment, so she returned the remainder to the stock bottle.
b)
Rodney wafted the fumes produced during the reaction toward his nose.
c)
Andrew heated the test tube towards himself in order to better observe the reaction.
d)
Kadie was aware of the lab procedures that day so she began the lab before the rest of the class to be sure she would finish.
2.
Cindy broke a test tube. Carefully she picked up pieces with one had and placed them in her other hand. Then she dumped the glass pieces into the wastebasket. Which lab safety rule is being broken in the scenario?
a)
Keep the work area clean and clean up after the lab is over
b)
Do not pick up broken glass with your bare hands
c)
Do not taste any of the lab materials
d)
Tie back long hair and push up long sleeves
3.
Which piece of lab equipment is pictured below and has specific markings for highly accurate measurements of liquid volumes?
a)
Beaker
b)
Graduated Cylinder
c)
Erlenmeyer Flask
d)
Test Tube
4.
What piece of lab equipment is pictured below and is used to hold and heat liquids and serves multiple purposes in the lab?
a)
Beaker
b)
Graduated Cylinder
c)
Erlenmeyer Flask
d)
Test Tube
5.
The base unit of volume in the metric system is the...
a)
meter.
b)
gram.
c)
liter.
d)
newton.
6.
The standard unit of length in the metric system is the...
a)
gram.
b)
liter.
c)
yard.
d)
meter.
7.
The metric system is based on a value of _____, which makes converting much easier.
a)
1
b)
10
c)
100
d)
1000
8.
Which of the metric conversion units below would be the best to measure the volume of water in a swimming pool?
a)
kiloliter
b)
mililiter
c)
hectoliter
d)
centiliter
9.
A typical aspirin has a mass of 500 mg. Convert this quantity to grams.
a)
0.05 grams
b)
0.5 grams
c)
50 grams
d)
5000 grams
10.
Below are two measurements. Determine if the first is greater than, less than, or equal to the second. 1500 mL is ________________ to 1.5 L
a)
Greater than
b)
Less than
c)
Equal to
11.
Approximately how many mL of water are in the graduated cylinder below?
a)
50 mL
b)
43 mL
c)
40 mL
d)
38 mL
12.
Prior to obtaining the mass of an object on the electronic balance, you must first...
a)
Place the object on the lid
b)
Unplug the balance from the wall
c)
Place the sugar crystals directly on the metal plate, NOT in a container
d)
Press the zero button to clear the balance
13.
Which of the following is NOT a goal of science?
a)
to investigate and understand the natural world
b)
to explain events in the natural world
c)
to establish a collection of unchanging truths
d)
to use derived explanations to make useful predictions
14.
Why is collaboration so important in the building of scientific knowledge?
a)
Collaboration allows for the sharing of knowledge to better develop plans and experiments.
b)
Collaboration prevents plagiarism.
c)
Collaboration allows more people to take the blame if something goes wrong.
d)
Collaboration allows private companies to make more profit from their employees' works.
15.
The work of scientists usually begins with...
a)
testing a hypothesis.
b)
careful observations.
c)
creating experiments.
d)
drawing conclusions.
16.
Based on your observations, you suggest that the presence of water could accelerate the growth of bread mold. This is...
a)
a conclusion.
b)
a hypothesis.
c)
an experiment.
d)
an analysis.
17.
A scientific hypothesis...
a)
can be based on personal beliefs or opinions.
b)
can be tested by experiments or observations.
c)
does not have to be tested to be accepted as correct.
d)
is a proven fact with much evidence to support it.
18.
Susie places 3 beakers in the freezer. The first beaker contains water only, the second contains water and salt, and the third contains a water and sugar solution. Susie recorded the temperature and the time at which each mixture froze. Which is the most appropriate hypothesis for her experiment?
a)
Salt affects the freezing point of water.
b)
The addition of salt raises the freezing point of water.
c)
The addition of sugar lowers the freezing point of water.
d)
The addition of different substances affect the freezing point of water.
19.
During a controlled experiment, a scientist isolates and tests...
a)
a conclusion.
b)
a mass of information.
c)
a control group.
d)
a single variable.
20.
Based on the graph below, what is the dependent variable?
a)
the population of birds.
b)
the month of the year.
c)
time.
d)
the number of days.
21.
Information gathered from observing a plant grow 3 cm over a two-week period is called...
a)
inferences.
b)
variables.
c)
hypotheses.
d)
data.
22.
A group of students set up an experiment with three plants that are each exactly five inches tall. Plant 1 is given fertilizer A, plant 2 is given fertilizer B, and plant 3 was given fertilizer C. All were given the same amount of water once a day. After 4 weeks their height is measured again to determine growth. What is wrong with this experiment?
a)
There were two variables changed in the experiment: fertilizer or not and amount of water
b)
Plants grow slowly, so the time frame is too short to see results.
c)
There is no control group for this experiment.
d)
The plants need to be taller at the beginning of the experiment to get more accurate measurements.
23.
Tina conducted an experiment to test her hypothesis. Her hypothesis was that by crushing aspirin and putting it into potting soil increases the growth rate of tomato plants. The results of the experiment show that there was no significant difference in the growth rates between the control and the experimental groups. What should Tina do with the results of this experiment?
a)
Assume she did the experiment incorrectly, ignore the results, and conduct the experiment again.
b)
Publish the results of the experiment and claim the converse of the hypothesis is true.
c)
Assume that there was something wrong with the aspirin or plants.
d)
Use the results to look at the situation in a new way, learn, and reapply it by altering the hypothesis and conduct another experiment to test her new hypothesis.
24.
Janine and Rodney want to determine who has the fastest growing puppy. They take the weight of the dogs every day for 6 months and feed them the same amount and type of Puppy Chow during this time. Which graph type would be BEST used to determine which dog has the FASTEST growth rate?
a)
bar graph
b)
pie chart
c)
pictograph
d)
line graph
25.
Below is a graph turned in by a former student after asking their classmates their favorite types of drinks for a statistics homework assignment. What part of the graph are they missing?
a)
Title
b)
Variables on the right axis
c)
Color coded bars
d)
Axis labels
100 %
