Your student mixes 1.5 cups of cornstarch with 1 cup of water, then works through seven activities that test how the oobleck responds to slow versus fast force. The observations table has a row for each activity, from pressing a finger in slowly to dropping an object from two different heights, and four analysis questions ask your student to explain the behavior in their own words and connect it to real-world uses like body armor and shoe soles. This non-Newtonian fluids with cornstarch lab sheet is well-matched for grades 4-7 and sits comfortably in a physics or matter unit.

The sheet works as a standalone lesson or as part of a broader states-of-matter unit study. An optional challenge asks your student to research another non-Newtonian fluid such as ketchup or quicksand and compare it to the cornstarch mixture, adding a research and writing component if you want to extend the session. Completing the lab demonstrates that your homeschooler can connect applied force to observable material behavior and articulate a basic definition of a non-Newtonian fluid.