Draw a circuit! a light bulb, you want to be able to switch it on and off, then you must connect the switch and the light bulb in series across the battery.

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.