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A Water Sensor Circuit for the Tree

With a bit of creative engineering, a simple circuit can do double-duty as a fun decoration and a helpful water-level monitor!

A Water Sensor Circuit for the Tree

Creative Engineering

When faced with a problem, engineers come up with solutions! Keeping a cut holiday tree watered is important for preserving the life of a fresh tree, especially during dry winter days. With a bit of crafty science and engineering, our staff scientist added a circuit with a sensor to a simple holiday ornament to help him keep track of when his tree needs water.

If the tree is low on water, the Rudolph ornament lights up.

Making Connections

Students can experiment with sensor-based science and circuit building using the Sensors Kit from the Science Buddies Store. To build a monitor similar to the one used in our engineer's Rudolph ornament, students can explore the circuit shown in the Green Technology: Build an Electronic Soil Moisture Sensor to Conserve Water project.

(Note: to build an "ornament monitor" similar to the one shown, using a soldering iron is recommended for a more durable circuit that can hang on a tree.)

Learn more about the Sensors Kit in the Science Buddies Store




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