These things suck. Anyone else have to do it for science class? I need to turn in my topic in a couple days, and I have no clue what to do. Any suggestions on what I could research?
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Use magnets to make an object levitate. But you'd need strong magnets, like the supermagnets you can buy in stores or those you get in computer hard drives. I happen to have two lurking around. I've got another inside a pringles can, holding it to the metal shelf above my desk and it's a cupholder
Since you'd already be coiling, try out the effects of transformers on the electromagnet! Make one that is 1:1, a step-up, and a step-down!
What science interests you? The only science fair I was in I was studying the resulting colors of fire from burning different salts.
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Well I saw one on the internet where you test the effects of oil on water plants. That seemed pretty interesting, but now that I think about it, it seems a bit easy.
I don't really have a favorite category for science. I guess I like things that deal with chemical reactions the most.
Well, science fair at my school isn't about making something cool and showing it off. It's about testing things to find the differences between them.
ex. what is a better conductor of heat; aluminum foil, ziploc bag, or plastic wrap.
Choose your favorite chemical reaction and analyze it.
Example: Vinegar and baking soda (acetic acid, CH3COOH and sodium bicarbonate, NaHCO3). You can measure input masses of compound, and mass of non-gaseous product. You thus have the individual masses of some component of the products and the reactants, and you can experimentally determine the stoichiometry of the reaction. And watch lots of stuff react vigorously.
I did something similar in 4th grade.. how old are you? Whenever there was a science fair it was in elementary school.