Creative Minds 𖹭 Happy Hearts
Testing the Absorbency of Different Diaper Brands Lab Sheet
Grab three diaper brands, a measuring cup, and a scale, because testing the absorbency of different diaper brands turns a grocery store aisle debate into repeatable data your student records themselves.
Your student forms a hypothesis, then works through nine numbered steps to measure how much liquid each diaper brand absorbs. The sheet walks them through weighing each diaper before and after a 250 mL water pour, sitting five minutes, and calculating absorbed liquid using the formula Final Weight minus Initial Weight. A data table holds results for up to four brands, tracking initial weight, final weight, liquid absorbed in grams or milliliters, and qualitative notes on leaks or wet feel. Designed for grades 3-6 homeschoolers, this lab sheet covers measurement, fair testing, and basic data analysis in a single session.
The absorbency of different diaper brands experiment works well as a standalone consumer science lesson or inside a unit study on materials science, polymers, or product testing. Analysis questions prompt your student to identify which brand absorbed the most and least liquid and to reflect on what they noticed across samples. The conclusion section asks whether their hypothesis held up and what they would change about the experiment, giving your homeschooler direct practice in scientific reasoning without needing any specialty lab equipment.
Compare the absorbency of different diaper brands in this hands-on homeschool science experiment for grades 3-6. Instant download included.
Investigating the Absorbency of Different Diaper Brands
Usage Notes
At least three diaper brands are needed alongside a measuring cup, water, a scale that reads in grams, paper towels, and a tray or large baking sheet. Every item is a household or grocery store find, though food coloring is listed as optional to make the water easier to see. Water is the only liquid involved, but the safety note on the sheet flags spill cleanup and handwashing as required steps, so keep dry towels nearby before you start.
Printing Tips
Twenty-four-pound copy paper handles the wet-hands environment of this experiment better than standard 20 lb stock. Print one sheet per student and keep it on a clipboard beside the tray so your homeschooler can record weights without moving the diaper setup.