Sand hourglasses are a unique and elegant way to tell time. Keep one in your home, office, or classroom, for decorative or practical purposes; this hourglass bridges the gap between the two, and makes for an excellent conversation piece or gift. Parents can use it at home as a method for visibly demonstrating the passage of time for young children. Free-standing sand timer measures 5.5 inches in height and measures approximately 10 minutes.
Build over 100 exciting electronic projects with this easy to use kit!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
This project book and sample kit introduces you to shape-memory alloy technology!
Learn all about the science of light, optics and visual perception with this wonderful kit!
Exciting magnet exploration for ages 8 and up!
This kit focuses on teaching children about electricity and how electronic devices work!