HELIOSTAT: Electricity from Sunlight Museum of Science and Industry Target Exhibit Summary: Visitors use a portion of the heliostat’s beam to illuminate.

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HELIOSTAT: Electricity from Sunlight Museum of Science and Industry Target Exhibit Summary: Visitors use a portion of the heliostat’s beam to illuminate and operate photovoltaics and power toys on a racing track Evaluators: Joy Wattawa and Pamela Martin

Evaluation Goals How much of the science of solar cells do people need to understand in order to understand the concept that sunlight contains energy? What contextual topics related to solar cells are people interested in? (e.g. physics/’how it works,’ green energy applications, etc?)

Evaluation Method Two part oral survey consisting of six questions: Part 1: Solar toy interactive, followed by three questions Part 2: Concept board, followed by three questions

Solar Toy Interactive Oral Directions while demonstrating: “Shine the lights on the cars to make them move fast and slow.” Question 1. What do you think the demonstration was trying to show you? Question 2. How do you think solar energy might impact or be a part of your daily life? Question 3. What do you find most interesting about solar energy? After 15 surveys

Concept Board Oral Explanation: “These are some images we put together about solar energy” Question 4. Which of the pictures would it be interesting to know more about? Question 5. Would you like to be shown about how solar cells work? (We showed a picture of a solar cell.) Question 6. Do you have any questions about solar energy that you would like to see addressed in an exhibit? After 15 surveys

Survey Participants (25 surveys, ~60 people)

What do you think the demonstration was trying to show you? Power & Energy Light/ speed Light to motion Light to electricity

What do you find the most interesting about solar energy? How it works Use in Daily lives How to make better solar cells

How do you think solar energy might impact or be a part of your life? Domestic Use Save money Better for environment

Which pictures would be more interesting to know more about? Car Solar stove Large solar panels House/ Practical

Would you like to know more about how solar cells work? YESNO

Do you have any other questions about solar energy that you would like to see addressed in an exhibit? Daily life/Practical application Realistic Home use Cost What else can it do StorageSocietal cost How does It work

Evaluation Summary How much of the science of solar cells do people need to understand in order to understand the concept that sunlight contains energy? Very little detailed understanding necessary Idea of conversion of energy contextual Similar for adults and kids What contextual topics related to solar cells are people interested in? Adults: practical application, (local) feasibility Kids: uses, not necessarily in their daily lives Interest in how it works, similar across age groups