Bubble Lab Report

Name______________________________________

Date __________ Block _____________

Partner _________________________
Bubbles!
Question: Which brand of dishwashing soap makes the biggest bubbles?Hypothesis: I think _______________________________________________

because _______________________________________________________.

Materials:
|Dishwashing soap brand A|Dishwashing soap brand B |Dishwashing soap brand C |
|______________________ |______________________|______________________ |
|Straw |Water |Metric ruler |Procedure:
1. Prepare the table surface by wetting it the bubble solution.
2. Dip a straw into the bubble solution and blow a bubble onto the wet surface.
3. Practice blowing bubbles untilyou can blow a large bubble without it popping.
4. Blow a bubble until it pops. The popped bubble will leave a ring on the table.
5. Measure the diameter of the bubble in cm. Record your data.6. Repeat 4 times.
7. Repeat steps 1 – 6 with each brand of dishwashing soap.






What is the INDEPENDENT VARIABLE in this investigation?___________________________________________________________________

What is the DEPENDENT VARIABLE in this investigation?
___________________________________________________________________

What are the CONTROLLED VARIABLES in theinvestigation?
___________________________________________________________________


Data:
Class Data:
Aver
Make a BAR GRAPH to show your data. Use the class averages to make the graph. Remember totitle and label your graph.

Title:_______________________________________________________________

[pic]



Data Analysis:
1. Why is a BAR GRAPH the best choice for this kind of data?...