$4.95 from Edmund Scientifics - Hand Boilers are looped and twisted glass sculptures containing a liquid that will "boil" using the heat from your bare hand. Fascinating science toy that demonstrates energy transfer. Comes in blue, green and red.

$19.95 from Countdown Creations - At 27 by 38 inches, this Space Missiles Chart displays to scale the world's spacefaring rockets. Included are all manned boosters from Vostok to Space Shuttle.

$8.95 from Edmund Scientifics - Dunk Drinking Bird's head to watch it bob back and forth, periodically taking a drink. Drinking Birds body is a glass vial filled with dye-colored red or blue liquid. May be used to indicate relative humidity. Set of 2.

$30.70 from Sciencekit.com - Are your students puzzled by fossils and how we know what we know about them? This activity puts it all together.

$99.95 from National Geographic - Kit includes everything you need to build your own hydrogen fuel cell-powered car - just add water! Manual included. For ages 10 and up.

$6.95 from Edmund Scientifics - 12 hobby motors of varying types.

$29.95 from The Discovery Channel Store - The forces of earth, fire and water create an amazing kinetic sculpture. Emulates the action of an erupting volcano with changing light patterns and multi-colored effects. Mesmerizing display. 9.75"H.

$469.00 from Sciencekit.com - This life-sized torso was designed to ensure accuracy and hand painted to give it a natural look and to feature the smallest details of internal organs. Includes four-part interchangeable male and female reproductive systems.

$109.95 from DiscoverThis.com - This wonderful first microscope has great optics with a rechargeable battery light source.

$179.00 from Edmund Scientifics - Student-friendly Digital Microscopy made easy and affordable. Designed & manufactured by a real Microscopy company!