This resource will help you facilitate a lesson in which students will think of ways to test the absorbency and then the strength of paper towels. Tips and suggestions for the lesson are offered. There are recording sheets as well. This activity is best done in a classroom where students have had access to scientific materials such as beakers, graduated cylinders, gram weights etc. If these materials aren't readily available cups, coins, marbles etc. could be used instead.
This resource really gets kids thinking!
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Bundle of Informational Readings and STEM Challenges for Upper Elementary Grades
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