BUBBLES
LAB
Friday, September 19, 2014
• IWBAT: analyze and evaluate appropriate
charts, graphs, and tables.
• IWBAT: use SI units for measurement.
• IWBAT: use appropriate technology and
laboratory procedures safely for observing,
measuring, recording, and analyzing data.
• IWBAT: accurately record and use
information obtained while conducting
investigations.
• IWBAT: identify and critically evaluate
information in data, tables, and graphs.
BEFORE
YOU
BEGIN….
• Question: Does the brand
of dishwashing soap make
a difference in the size of
the bubbles?
• Label “Bubble Lab” in your
lab section of your
notebook.
• Develop your hypothesis.
Remember your
if…then…because
statement.
PREPARATION FOR LAB
In your group of 4 decide on two people to gather
supplies
From the supply station, gather 3 graduated cylinders
Decide who will gather the safety goggles and rulers
Create a table label it brand A, B, and C. Include 5 trials
and an average column. Title it Diameter of Bubbles in
cm
Trial
1
2
3
4
5
Average
Brand A
Brand B
Brand C
PROCEDURES
Remember: IF YOU ARE NOT FOLLOWING
DIRECTIONS YOU WILL BE REMOVED!
Put on safety goggles and prepare table
surface by wetting it with the bubble
solution.
Dip straw into bubble solution and blow a
bubble onto the wet surface.
Practice blowing bubbles until you can
blow a large bubble without it popping.
PROCEDURES…..
• Blow a bubble until it pops. The
popped bubble will leave a ring
on the table
• Measure the diameter of the
bubble in cm and record your
data table
• Repeat 5 times
• Repeat steps with each brand of
soap
• Average your data
CAN YOU ANSWER THESE QUESTIONS?
• Remember to write the question and answer in
complete sentences!!
• What is the independent variable in this
investigation?
• What is the dependent variable in this investigation?
• What are the controls in this investigation?
• Identify any variables in this investigation.
• In your journal, create a BAR GRAPH to show your
data. Use your average diameter of the bubble for
each brand. Make sure your graph has: Title and a
label for each axis.
• Why is a bar graph the best choice for this data?
• What does the data tell you about the three different
kinds of dishwashing soap and bubbles?
REFLECTION:
• Describe what you have
learned about soap bubble
solutions. Answer the
original question, explain
why your hypothesis was
supported or not supported
by the data, and use actual
data (specific numbers) to
provide evidence for what
you say.