The Solar & Lunar Eclipse Demonstration Model is an educational apparatus designed to clearly illustrate the concepts of solar and lunar eclipses. This working model features a representation of the Sun, Earth, and Moon, mounted on a mechanical system with interlinked gears that simulate their relative movements. The model helps students understand how eclipses occur based on the alignment of the Sun, Earth, and Moon. By operating the device, users can observe the rotation and revolution processes, making it easier to visualize complex astronomical phenomena such as seasons, eclipses, and orbital motion. Constructed from durable materials with a stable base, the model is ideal for classroom demonstrations and practical learning. It is widely used in schools and colleges to enhance understanding of basic astronomy concepts through interactive learning.