Electricity Goes Round and Round Students explore series and parallel circuits and compare the functioning of the components in each circuit. They formulate and justify their predictions, based on their observations of electricity transferring energy to produce light and motion. D-cells and solar cells are used as energy sources. Students also learn about alternative energy sources while answering the following questions: How can you get two bulbs to light at the same time? How can you light two bulbs brightly with one D-cell? Which design is better for manufacturing long strings of lights—series or parallel? How can you make a motor run faster using solar cells? 4.1A, 4.1B, 4.2A, 4.2B, 4.2C, 4.2D, 4.2E, 4.2F, 4.3A, 4.3B, 4.3C, 4.3D 4.4A, 4.4B, 4.6C, 4.7C
