Click here to download the catalog as a PDF file. To view this site you need Adobe Flash Player and your browser must allow javaScripts. Go here to get the latest Flash Player. See a dramatic difference in the two blocks’ results after less than 60 seconds! Energy Ice Melting Blocks Touch these two black blocks and one feels cooler. Place an ice cube on each block. One completely melts before your eyes, while the other stays frozen! Surprisingly, the “cooler” block melts the ice faster! This discrepant event demonstrates key concepts such as heat transfer, change of state, and thermal conductivity. Kit includes two blocks and complete instructions. P6-7060 Ice Melting Blocks $16 6 or more $15 Which material is conducting heat into the ice faster? Radiometer This deceptively simple device is an intriguing introduction to the study of gases, molecular motion, and thermodynamics. An evacuated glass bulb encloses a rotating shaft with vanes painted black on one side, silver on the other. Light energy differentially warms the vanes’ flat surfaces, imparting energy to the gas molecules which “kick” the vanes into rapid rotation. An instruction and explanation sheet is included. P3-8105 Radiometer $7.95 10 or more $7.25 Potential energy takes off! This cool little car uses the stored potential energy of its brightly colored flywheel to send it scooting across the floor. With its optimal gear ratio, Zecar can climb up inclines and over obstacles like you would not believe. A rotating object (the flywheel) possesses kinetic energy. The amount of energy depends on the object’s rate of rotation as well as the quantity and distribution of mass in the object. P4-1985 Zecar $12 6 or more $11 To increase the available current, connect cells in parallel (shown). To increase voltage, connect cells in series. Solar Cells for Student Projects Mini solar panels encased in plastic are perfect for student construction projects. Each cell is complete with connection wires and is ready to solder or clip to any electrical device. Need more voltage? Connect the cells in series. More current? Connect them in parallel. P6-7201 Use the Zecar to demonstrate rotational inertia, the transfer and storage of energy, and efficiency. Solar Cell, 0.5 V, 400 mA $8.50 10 or more $7.75 each arborsci.com Get more information on the Teaching with Toys series at www.arborsci.com Teaching Physics with Toys Book! Visit us online for complete details on these books and other products. These motivating, teacher-tested activities are designed to meet — and are referenced to — the National Standards for Science Education. Designed for grades K-9, these workbooks give you dozens of activities that use fun, inexpensive toys. Each activity comes complete with a list of process skills used, estimated completion time, a materials list, step-by-step instructions, safety and disposal procedures, extension suggestions, explanations, and reproducible worksheets. P8-0500 P8-0600 P8-2000 54 Teaching Physics with Toys Teaching Chemistry with Toys Exploring Matter with Toys $24.95 $24.95 $24.95 P8-2100 P8-2400 Investigating Solids, Liquids, and Gases with Toys Exploring Energy with Toys $24.95 $24.95 1-800-367-6695