Snap Circuits Upgrade Kit SC-300 to SC-750
With these kits from Elenco, you can start with the basic kits (see above) and add on without duplication. If you began with #28551, the 100 experiment kit, you can choose one of the upgrade kits like SC-100 to SC-300 with experiments 102-305, SC-100 to SC-500 with experiments 102-511, or SC-100 to SC-750 with experiments 102-692.
All right, so you've purchased the 300 experiment set, #29506, for your little science whiz and now you want to add to it. Depending on how much you want to add, you can choose from SC-300 to SC-500 with experiments 306-511, or go with a double upgrade set and include experiments 306-692.
If you have already purchased the 500 experiment set, #29507, the only set you'll need is SC-500 to SC-750 which includes experiments 512 to 692.
Each kit comes with all the parts and an instruction manual for completing the experiments. It is important to note that the kits are upgrades and aren't very useful independently. They are intended as add-ons to the basic kits and the parts contained therein.
These easy-to-use circuit kits are composed of over 30 easy to snap "blocks" of all necessary electronic components, similar to those used in Switch On!. An impressive number of projects can be made using these parts, including an electric light, a sound activated switch, lamp and fan, two-speed fan, laser "gun." police siren, clap sounds, blinking double flashlight, motor sounds, strobe lights, motor-controlled lamp, lamp/speaker/fan in parallel, pencil alarm, touch motor, bomb sound, simple water alarm, and many, many more projects and games. Each project is listed in the booklet, and featured in a half-page layout which includes a full-color diagram of the finished setup, objective, and directions. The parts are all labeled on the diagram, making it easy to set up the project, and the directions include an explanation of how the circuit works, so maybe after the thrill of creating their own laser "gun" or water alarm wears off, they'll come back and actually figure out how it works. A fairly detailed orientation to the parts in the kit and their functions, safety guidelines, parts checklist and a troubleshooting guide are all included at the beginning, so students can complete the projects safely - and get a lot more from the kit than just "making cool stuff." Looking back from beyond college, I definitely recommend any child looking to the science route in college to play around a bit with one of these kits - it honestly does make understanding circuits and charges at the college level a little easier. This is definitely too fun to be "science!" A Dr. Toy 100 Best Children's Products Winner. - Jess