Sunday, May 19, 2013

Cubes and Color

How does color affect how fast an ice cube will melt from Green-Planet-Solar-Energy! Investigate the heat absorbing capacity of different colors by placing ice cubes on various colors of construction paper (make sure you include black and white). Do certain colors reflect or absorb more light? Lay the paper and cubes in a super sunny spot. Then, make a prediction, create a list of what cubes you think will melt the fastest. Have kids write the color names in a column, starting with the color they think will make the ice cube melt the fastest and ending with the color they think will melt the ice cube the slowest. Create a graph of the kids' predictions. 

Green Planet also suggests a twist on the experiment. Kids test colored cubes on white paper. They use food coloring to create different colors. For a white cube they add milk. To create a black cube they add cola. They place one colored cube on each piece of white paper. Which cube will melt the fastest?!

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