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The Big Idea

Sensors detect changes in the environment and trigger a response.

Ages
10+Adult supervision required.
  • Circuitry
  • Technology
  • Measurement
  • Critical Thinking

Safety

  • Contains small parts. Not suitable for children under 3.
  • Adult supervision required.

What’s in the Kit

  • All materials to build one Rain Sensor House
  • Full color, step-by-step instructions

What you add

  • Water

Real-world connection

How Do Machines Know When It Is Raining?

Rain sensors are hard at work all around us. They turn on car windshield wipers automatically and tell sprinkler systems to skip a watering when it rains. Farms, weather stations, and flood warning systems rely on rain and water-level sensors too, using the data to protect crops, forecast storms, and keep communities safe. Each one follows the same simple pattern of sensing a change and triggering a response. On this house, a wet roof sends a signal to the circuit board, and the light and buzzer announce the alert.

For classrooms

The Rain Sensor House Kit is a great fit for classrooms, after-school programs, and camps. Each kit builds one house and arrives individually packaged with all materials and instructions included.

Purchasing for your school or program? Request a quote.

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