so im in 7th grade and i juss got a science exit project... i need to create something [[that already been invented]] but i go to do it on my own ex: a toaster, lightbulb, ect. but those i cant do couze they been already taken... so can u please help me out give me ur idea of good invention that a 7th grade student can do.... thank you! <3
2007-04-23 11:44:49 · 7 answers · asked by SaBrInA 1 in Science & Mathematics ➔ Other - Science
Electric toothbrush, blow dryer, vacuum.....
2007-04-23 11:55:51 · answer #1 · answered by dwinbaycity 5 · 0⤊ 0⤋
If you could round up the items, try a stationary bicycle whose back wheel has a copper core which can spin between two magnets. The two magnets are connected to a electric bulb. When the bike is pedalled, the core rotates between the magnets creating a current which can light a bulb. Sort of a "green" feeling to it.
2007-04-23 19:29:33 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋
i am not sure what the parameters of your project are but some of the best inventions are the simple things that ,mostly , we take for granted.
how about something like the ring-pull on a can? or light reflective sunglasses. perhaps a zipper or a cordless power tool.
these items are ,on the face of it , simple but are in fact quite complicated and impact on our daily lives.
hope this helps , and if not , all the best anyway.
2007-04-23 19:10:35 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Do a Van der Graaf generator. It's fun, hands-on and not too complicated - my sixth-grader built one with a minimum of help from my husband.
2007-04-23 18:53:52 · answer #4 · answered by ina291262 2 · 1⤊ 0⤋
I was in 7th grade last year and had to do somethin like that and i did the phone
good luck
2007-04-23 18:53:04 · answer #5 · answered by M 3 · 0⤊ 1⤋
Some type of clock perhaps
2007-04-23 19:48:35 · answer #6 · answered by gmsgurl13 3 · 0⤊ 0⤋
How about a telephone?
2007-04-23 18:47:53 · answer #7 · answered by Behaviorist 6 · 0⤊ 1⤋