In this activity, students' will use a Voltage Sensor to measure the voltage produced by an electrolyte. They will understand that acids and bases are electrolytes and compare voltages of acids to the voltages of bases. Students' will...

In this activity, students make a battery using different fruits and vegetables, a copper penny, and a zinc washer. They use a voltage probe to collect data on voltage and compare the values of different batteries.

Review how an electric force behaves between like or opposite charges, and its dependence on separation distance and charge magnitude. Compare the electric force and gravitational force.