Ms. Scott’s sister is getting ready to have a baby and she wants to know which diaper brand is the best to use. She wants a diaper that will work best for her family (cost, durability, absorbency, etc.).
Absorb: to take in, suck, or swallow up
Durable: able to last a long time
Biodegradable: capable of being broken down especially into harmless products by the action of living things
Procedure: a series of steps followed in a regular definite order
Generic: not protected by a trademark registration
4 different brands of diapers, labeled #1, #2, #3, and #4 in their packages with the price
Paper to record data
4 plastic containers
250 mL measuring beaker
100 mL graduated cylinder
“ Consumer Product Testing” sheet
Brand Names of Diapers for Experiment
Look at the labeled diapers and brainstorm characteristics that make a good diaper. Write these down.
What should the diaper have to stay attached?
How thick should the bottom be?
How would you choose which brand of diaper is the best?
How could you test the absorbency, durability, and biodegradability of the diapers?
Today, you are going to test the absorbency of 4 different brands of diapers. Write out your procedure for testing the diapers. (Remember, you are scientists and need to make careful observations and measurements!)
How will you measure the water?
How much water will you use at a time?
Make a prediction of which diaper be the most absorbent. Write this down as your hypothesis.
Begin to test your hypothesis and record your data using the “Consumer Product Testing” sheet.
Use the price per package and the amount of diapers in the package to determine the cost of 1 diaper in the package.
Review your findings. Which diaper is going to be the best for Ms. Scott’s sister to use considering cost, appearance, and absorbency?
Which diaper held the most water? (absorbency and durability)
Which diaper was the cheapest? (cost)
Were there trade-offs in making your decision?
Did your results match your hypothesis?
How could you apply this type of testing to other products?
How did you decide which diaper was the best choice?
How would additional features of the diaper affect the consumers desire to purchase the product?
Why was it necessary to measure the water amounts carefully when carrying out the procedure?