Planisphere is a practical guide to finding your way around the night sky. It demystifies astronomy and introduces basic stargazing techniques, enabl..
Teaching Time Clock: All items in the game come with appropriate size, which is suitable for kids to grasp and hold.Solar System: Premium materials, s..
About this item【Highly Transparent Crystal Ball】The 3d planet crystal ball is made of high-quality K9 crystal, which is more transparent and pure, fre..
ISRO Expandable Metal Bookends, Adjustable Book Ends Heavy Duty Book Holder Desktop Book Stand Non-Skid Desk Organizer for Kids, Student, Office, Scho..
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What ! No batteries? Be a scientists as you discover how to power this digital clock using earth. Experiments to find out what other substanc..
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This circuit most useful for security checking. It used a sensing coil. Unassembled Electronics PC Board. Requires Soldering. Batteries not i..
Navitar's 3.5X Fisheye Conversion Lens (1-24207) is designed to work with lower cost projectors that do not have replaceable lenses. This is an ideal solution for planetariums that want to upgrade their existing systems, but can't afford to buy new projectors or replacement lenses. The new 3.5X Fish..