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Kids build a solar-powered moisture sensor to tell them when their plant needs water.

Feedback that feeds plants

Using plaster of Paris, a few electronic components, and solar panels, kids make a sensor that tells them when their plant needs water. It’s the perfect introduction to building circuits and learning about sensors!

In 3 simple steps, thirsty plant comes together to tell you when it's watering time:

  • Make the sensor using plaster and a circuit.
  • Twist the wires together to build the solar panels and attach to your favourite plant.
  • The light will flash when the plant’s thirst needs quenching!
  • Ages: 8+


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