Phases of Moon Working Model STEM Lab
Product Code : SCL-OS-12449
The Phases of Moon Working Model by Educational Instrument India is an advanced, motorised pedagogical tool designed to simplify the complex celestial mechanics of the lunar cycle. Understanding why the moon appears to change shape from Earth is a fundamental challenge in astronomy; this model bridges that gap by providing a real-time, mechanical demonstration of orbital illumination.
Unlike static diagrams, this model uses a gear-driven mechanism to synchronize the movement of the Moon around the Earth. Equipped with an integrated light source representing the Sun, it creates realistic shadows and light patterns on rotating phase discs. This allows students to observe New Moon, Waxing Crescent, Full Moon, and Waning Gibbous phases in a controlled classroom environment. It is the perfect addition to STEM labs, geography classrooms, and science fairs.
Technical Specifications
Brand: Educational Instrument India
Mechanism: Motorised, high-precision gear-driven motion for smooth rotation.
Light Source: High-intensity LED/Bulb representing the Sun for clear shadow definition.
Construction: Durable, impact-resistant classroom-grade base.
Base Dimensions: 9” x 5” (Compact and portable for desk demonstrations).
Power Source: AC/DC power connection with an integrated safety control switch.
Visual Aids: Rotating moon phase discs showing clear lunar surface details.
How to Use the Phases of Moon Working Model
Setup: Place the model on a flat surface and connect it to a power source using the provided cable.
Activation: Turn on the "Sun" light source using the control switch. Dim the classroom lights for the best visual effect.
Observation: Activate the motor to begin the lunar orbit. Watch as the moon discs rotate, showing how the angle of sunlight creates different phases as seen from the "Earth" position.
Identification: Stop the motor at specific points to have students identify the eight primary phases of the lunar month.
Discussion: Use the model to explain the difference between a sidereal month and a synodic month, and why we always see the same side of the moon (synchronous rotation).
Frequently Asked Questions (FAQ)
Q: Is the model suitable for primary school students?
A: Yes, the visual nature of the light and motion makes it accessible for primary students, while the gear precision satisfies high school curriculum requirements.
Q: Does it require assembly?
A: The model comes largely pre-assembled and ready for "plug-and-play" classroom use.
Q: Can the "Sun" bulb be replaced?
A: Yes, the light source is designed for easy maintenance and bulb replacement if necessary.
Q: Why choose the motorised version over the manual one?
A: The motorised version by Educational Instrument India ensures a constant orbital speed, allowing the teacher to focus on the lecture rather than manual cranking.
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