Cold Day Science

Use a cold day to help your child become an experimental scientist studying the effects of sun exposure. Give your child two cups - plastic ones are better, but paper ones will do. Pour water tinted in different colors into each of them - about half a glass. Then advise your child to place one glass in the yard on the sunny side, and the other in the shade, and so that he often checks in which glass the water begins to freeze faster. How long will it take for each cup to freeze the water in it? Does all the water freeze at the same time or is there some difference between the top of the cup and the bottom? In warmer weather, your little experimenter can do the opposite. Cover the glasses with colored water with plastic lids and place them in the freezer. When the water freezes, take the cups outside - one in the sun and the other in the shade. Watch how quickly the water in them begins to melt.