How to make reflective solar water heater?

Image by Mikenan1
Displays of 3 thermometers monitoring (L to R) temperature of pipes going from tank to house, going from tank to roof, and from roof to tank.

Question by rckgh1992: How to make reflective solar water heater?
I have a school project to make a solar water heater. It needs to take sunlight and reflect it onto/into a container that holds water. The surface are of the reflector needs to equal the amount of water in the container. So no giant mirrors heating an ounce of water. How do I do this?

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