B5 We build a thermal solar plant (teacher instructions)

The two subexperiments on concentrating sunlight with a lens and a mirror are particularly suitable in physics class for the students to become acquainted with some laws of ray optics and thermo-dynamics based on a highly topical subject or to verify material already learned. But the experiments can also be used for a project day on renewable energy or energy transition. The materials and apparatus supplied are sufficient to allow four groups of students to work simultaneously.

The experiment comprises two subexperiments:
• Setting fire to a strip of paper using a magnifying glass as a burning lens
• We heat water with the sun

Notes:
• Observe the safety information in the instructions as well as the applicable safety guidelines for your school.
• All materials mentioned in the instructions will have to be purchased directly from commercial sources.

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Physics; Technology

Grade 5 to 6; Grade 7 to 9; Grade 10 to 13

Middle/high school

Energy supply; Environmental education; Lens (optics); Power generation; Power plant; Renewable energy; Solar energy; Sun; Thermometer

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