Measure the water temperature and set one cup on each paper.
Experiments on solar panels.
The experiments test how radiation and rocket launches could affect dye sensitized solar cells which the students say are safer and easier to make than traditional solar panels.
As the one in the sun turns into a puddle first explain that the heat energy from the sun made it melt faster.
Have a discussion and make predictions about what you think will happen to the water in each glass.
Place one cube directly in the sun and the other in full shade.
Or analyze how solar cells or panels work.
Cover one of the glasses on white paper with plastic.
Experiment with solar power by building your own solar powered robot or oven or by testing ways to speed up an existing solar car.
A future experiment would use mirrors in front of the solar panel rather than bi convex lenses which would increase the amount of sunlight coming into contact with the photovoltaic cells.
Fill each cup with the same amount of liquid of the same cool temperature.
Place the cubes outside in your backyard on a sunny but not too hot day.