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In this lab activity, learners explore how to initiate a density current. Learners measure six flasks with different concentrations of salt and water (colored blue).

In this activity (located at the top of the page), learners make an easy river strainer and see what they can catch.

In this activity, learners apply Ohm’s Law to construct voltage divider circuits. Learners discover how to read resistor codes and calculate resistor values.

In this demonstration, cook a cake using the heat produced when the cake batter conducts an electric current.