Diaper Absorbency Lab
We are designing a new cutting-edge diaper and we need to do some research first. We want to find a substance that can absorb large amounts of
Your job is to test three different materials and determine which can absorb the most water. The best way to do this is to compare the weight of the
substance to the weight of the water it absorbs.
Beyond that, it is up to you to design and write out your experiment.
Here are the materials we have available...
Shredded Paper “Gravel” Beakers
Shredded Paper Towels Petri Dishes Eye Droppers
Water Triple Beam Balances
Lab Write-Up Format
THIS OUTLINE WILL HELP YOU TO WRITE YOUR LABS. There may be changes or modifications but all elements must be included in your lab write-up.
Each section on your lab paper must include the Roman numeral and heading (as in I. TITLE: )
I. TITLE: As given in your text book, handout, or by the teacher.
II. PURPOSE: Referred to as the "PROBLEM" in the text, handout, or by the instructor. This will be a short description of the purpose of the lab
answering the question: "Why are we doing this lab?"
III. HYPOTHESIS: Your guess or prediction as to what will occur stated by using an "if - then" statement. For example: “If I don’t turn in my homework
on time, then Ms. Hester will be really ticked off.” This is not a required section in all labs. I will inform you if you are not to include it.
IV. MATERIALS : This is a recipe list of the materials that must include size, shape, color, and quantities used in the lab. You may simply say "REFER
TO PAGE ??? IN OUR TEXT BOOK" if appropriate.
V. PROCEDURE: Written out step-by-step instructions referring to all materials, times, etc. to be used in this lab. You may simply say "REFER TO
PAGE ??? IN OUR TEXT BOOK" if appropriate.
VI. DATA COLLECTION: There is always some kind of data that needs to be taken down during an experiment. This section includes the notes you
collect like the times, temperatures used, quantities, good things that happened and the bad. If possible, data should be in a graph or chart.
Sometimes data tables will be provided for you.
VII. ASSIGNED QUESTIONS: Answer all questions in the procedure of the book or any of the additional questions at the end of the lab that the
VIII. CONCLUSION: THE MOST IMPORTANT PART OF THE LAB!!! This is a paragraph or two that tells the reader what you learned. Your grade will
depend mostly on this section.
• Was your hypothesis supported or refuted according to your data?
• What was your hypothesis? (“It is true/false that (repeat prediction of hypothesis here).”)
• Give 2 specific supporting data points that support or disprove your hypothesis. Explain how the data supports your findings.
• Tie it all together. How does the data relate to the original purpose (the question being asked) of the experiment?
• Discuss any limitations of your equipment.
• How does the experiment related to what’s being studied?
• Investigational work is a large portion of your overall grade. Do your best work!
• Make sure your lab write-up is neat, organized, and readable.
• Use the “procedure” and “conclusion” writing rubrics to ensure all areas are meeting expectations.
• Avoid using the first person, I or we, in writing. Keep your writing impersonal, in the third person. Instead of saying, “We weighed
the frogs and put them in a glass jar,” write, “The frogs were weighed and put in a glass jar.”
The breakdown of the grading in the written portion is as follows:
"A" SUPERIOR - Tell the reader what you have learned in the lab, but do it by showing the reader INSIGHT (look it up). You must go beyond the basic
meaning of the lab and tell the reader how the concepts relate to our planet. What additional knowledge can you learn by the concepts gained in this
lab? How can these concepts be transferred to other parts of our world to explain other scientific concepts. In this part, the student should ask
questions that have been stimulated by the lab (each one will be answered, if possible). YOUR WRITING MUST GO BEYOND THE ABOVE AVERAGE
"B" ABOVE AVERAGE - What knowledge did you gain? What did you learn that can apply to your life, your world. This will not contain all of the facts
or how you did the lab. Show the reader that you understand why this lab was important to learn and how it supported all of the reading and lecture in
"C" AVERAGE - "JUST THE FACTS, MA'AM". The basics of what you did and why you did it.
"D" BELOW AVERAGE - A meager attempt. At least you wrote something down on the paper.
Diaper Absorbency Lab
This should be attached to the front of your lab write up.
Self Peer Teacher
Purpose and Hypothesis (10 points)– (Hypothesis: IF…, then…) Are
both clearly stated and related to the experiment?
Procedure – Are the steps clear? (20 points)
Is it a controlled experiment? (1 thing changing) (10points)
Does it actually test what we are studying?(10 points)
Data (10 points) - Is there a table?
Does it have data about the experiment?
Analysis (10 points)– Does it explain what the data means?
Conclusion (30 points) – Does it include a statement summarizing the
outcome? Does it explain whether or not the data support the