2006-06-20 19:57:13 · 5 answers · asked by cid 3 in Education & Reference ➔ Homework Help
u can visit Steve spangler's site and do some physics tricks such as the coca-cola and menthos geyser. check it out it's worth it. if you think you need something more advanced u can try building a scanner with Lego parts (i checked it out it's really cool and it works)
2006-06-20 20:04:28 · answer #1 · answered by Nick 1 · 0⤊ 0⤋
you can make a small circuit to check the level of water in a tank. The circuit uses a transistor as switch. The base of the transistor gets supply via two probes dipped in the tanks. The moment the level of water in the reaches to the level of the probes, the transistor switches on. It can be connected to a LED which will give visual indication that the tank is full to the required level.
2006-06-20 20:06:49 · answer #2 · answered by Raju 1 · 0⤊ 0⤋
Very chilly temperatures (like liquid nitrogen) reason electrons to race down a twine "super-habit" It become stumbled on sometime interior the 80s, yet they by no potential chanced on it tobe achievable money clever this is. although attempt working insulated wires interior the path of the nitrogen, and 2 wires devoid of nitrogen linked to a volt multimeter to illustrate the effects that chilly temperatures have on electrical energy. stable success my pal
2016-12-13 17:42:27 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Does water mass increase when it becomes a solid?
2006-06-20 20:04:15 · answer #4 · answered by Cordelia 4 · 0⤊ 1⤋
you can make an atmospheric pressure powered fountain.
2006-06-20 23:41:08 · answer #5 · answered by Anonymous · 0⤊ 0⤋