Curated OER
Why Do Some Things Float?
Students recognize that density determines whether objects sink or float. For this sink or float lesson, students experiment with plastic in three liquids. students drop their objects into the liquids and observe and record their results.
Curated OER
Earth Science: The Structure of the Earth
Students identify and complete activities about the structure of the Earth. In this Earth structure lesson, students view a Powerpoint about the Earth's layers and complete a diagram. students compare temperatures in the Earth's layers...