These two experiments allow students to interact with density concepts. In addition to letting students apply their density knowledge, the labs give students practice working with others to reach a common goal while using the scientific method. For the first lab they will need to create an aluminum foil structure that floats when placed in water. For the second lab they will need to create an aluminum foil structure that sinks when placed in water. These two labs are meant to be given back to back with each other, either on the same day or the very next day. My students really enjoy these experiments, which makes it easy for me to refer back to the activity any time they need a quick refresher of density concepts.
The density experiments require these inexpensive and easy to find materials: aluminum foil, an aquarium or large bowl, water, scissors, rulers, and one stopwatch.
This resource can also be purchased at a discount as part of the Density Package
, which comes with two worksheets, two experiments, one project, and one assessment.
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