To show how many times it takes to run water through a flat-plate solar collector to get a 10-degree rise in the water temperature.
Objective: Students will:
• Build a flat-plate solar collector.
• Experiment with heating water with the collector.
Understand energy, its transformations, and interactions with matter.
Identify forms of various types of energy and their effects on matter.
Identify various forms of energy including heat, light, sound, and electricity.
Describe examples of energy transfer.
Identify the direction of heat transfer on a diagram showing objects at different temperatures.
Identify ways to produce heat including light, burning, electricity, friction, and as a by-product of mechanical and electrical machines.
Identify examples of energy transfer in the environment.
FORMING THE QUESTION/HYPOTHESIS
Make observations. Ask questions or form hypotheses based on those observations, which can be explored through scientific investigations.
DESIGNING THE INVESTIGATION
Design a simple scientific investigation to answer questions or test hypotheses.
COLLECTING AND PRESENTING DATA
Collect, organize, and summarize data from investigations.
ANALYZING AND INTERPRETING RESULTS
Summarize, analyze, and interpret data from investigations.
2 40-minute periods
1 25cm square piece of cardboard
1 52cm square piece of cardboard
(Find the cardboard at your school. I f a box is approximately the size of the box specified – use it!)
Razor blade or knife
Flat black spray paint
Tape or stapler
Insulation material, 7cm thick x 25cm square
(If you have some other materials such as Styrofoam, cardboard, newspaper, etc. use them as different trials)
1-meter red rubber tubing, 3/8” to 1/2” diameter
40cm square pieces 3 or 4-mil clear plastic
Plastic funnel to fit inside plastic tubing