Quick Answer: The Phases of Moon Working Model STEM Lab is a motorised, gear-driven model that moves the Moon around the Earth while a built-in lamp acts as the Sun. Rotating phase discs show how the angle of sunlight produces each lunar phase.
Last updated: October 2026
Key Features
Motorised gear drive moves the Moon around the Earth at a constant speed
Built-in light source representing the Sun casts shadows on the phase discs
Rotating moon phase discs show lunar surface detail
Control switch for the lamp; motor can be stopped at any phase
Supplied largely pre-assembled, with a power cable
Technical Specifications
Specification
Value
Mechanism
Motorised, gear-driven
Sun
Built-in light source with control switch
Moon
Rotating moon phase discs
Assembly
Largely pre-assembled
About This Product
With the room lights dimmed, the teacher starts the motor and the class watches the phases change as seen from the Earth position, from New Moon through Waxing Crescent to Full Moon and Waning Gibbous. Stopping the motor at points around the orbit lets students name the eight phases of the lunar month and discuss synodic and sidereal months and why the same face of the Moon is always seen.
Frequently Asked Questions
Can the Sun lamp on the Phases of Moon Working Model be replaced?
Yes. The light source is designed for easy maintenance and bulb replacement.
Does the model need to be assembled?
It comes largely pre-assembled and connects to a power source with the cable provided.
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