at school we're going to be starting our science fair projects soon. (i absolutely hate it and want to do something easy to get it over with...but still get a good grade) i was considering doing a project on tooth decay (i know..it sounds weird..but seems easy) "what is the effect of various liquids on tooth decay?" i've heard that egg shells and teeth are made of the same thing so i was thinking that i could hard boil eggs and then place them in different liquids and then after a couple of weeks take them out and see how much has been decayed...my question is that are egg shells a good substitute for teeth and do you think my project will work out ok...also....what would be an accurate way of measuring how much has been decayed...the only thing i can think of is estimating the percent..but that's not very accurate.

2006-09-19 13:35:20 · 2 answers · asked by serendipity 5 in Other - Science

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explain why thirteen hundredths are equivalent to one hundred thirty thousandths?

2006-09-19 13:30:53 · 3 answers · asked by mon 2 in Mathematics

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an environmental problem that affects us and three possible ways to fix it ?

I need to find a website that shows something effecting our enviroment that could harm us [living organisms] and figure out three [3] ways of resolving that issue. Help please?

2006-09-19 13:24:49 · 6 answers · asked by xillusonx08 1 in Biology

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Plot the point with coordinates (–3, –3).?

what does this mean???

2006-09-19 13:23:39 · 17 answers · asked by Anonymous in Mathematics

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what is the slope of the line passing through the points (2, 6) and (4, –9).?

2006-09-19 13:22:25 · 9 answers · asked by Anonymous in Mathematics

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Volume of a right circular cone. Solve for h : V=pie r(to the second)h/3?

Please explaine to me how you got the answer.

2006-09-19 13:19:37 · 2 answers · asked by Dominique M 1 in Mathematics

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What is the biggest number in numbers.?

Think you know.?

2006-09-19 13:19:30 · 11 answers · asked by doorseeker 1 in Mathematics

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What family is the element magnesium in?

Under a list of information I need for biology, I need to know the "family" for Mg (among other things such as boiling point and classification, which I easily found.) I can't seem to find "family" anywhere on the internet. Does anybody have any idea?

Kthnxbye. <3

2006-09-19 13:17:58 · 2 answers · asked by Wolfy-chan 3 in Biology

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If it took 12 men to finish a job in 2 hrs, how long will it take 8 men ?

please explain or show how u got your answer so I can compare with mine.I got 6 hrs I do not know if it is correct.

2006-09-19 13:17:32 · 15 answers · asked by Jessie 1 in Mathematics

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If you pass light through a yellow and blue filter, will you see green? Why or why not?

2006-09-19 13:17:29 · 5 answers · asked by Anonymous in Other - Science

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What compound is formed when a bottle of hydrogen is opened and a flame is brought to the mouth of the bottle?

The hydrogen is formed using the method of downward displacement of water and zinc and sulfuric acid.

2006-09-19 13:12:59 · 4 answers · asked by Anonymous in Chemistry

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what are magnets made of?

2006-09-19 13:10:59 · 10 answers · asked by Mark S 1 in Chemistry

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Does a black hole last for ever.?

2006-09-19 13:10:55 · 15 answers · asked by doorseeker 1 in Astronomy & Space

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How can I use a gradulated cylinder to measure the volume of an irregular object?

2006-09-19 13:09:45 · 13 answers · asked by curious 1 in Mathematics

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Did God cause The Big Bang?

The Bible says God created the universe but it doesn't say how. Is it possible that He created it in this manner? How much of science can actually be tied into creationism?

2006-09-19 13:08:26 · 11 answers · asked by Anonymous in Earth Sciences & Geology

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algebra word problem-cell phone bills?

suppose that the charges for a cell phone bill are $0.50 for the first minute and $0.25 for each additional minute. assume that a fraction of a minute is rounded up. how do i find a formula for a function "f" that computes the cost of a call that is "x" minutes long, where 0 < x <= 5? but writing it in a piecewise-constant fuction?

an explanation would be greatly appreciated and thanks for the help.

2006-09-19 13:08:09 · 2 answers · asked by shih rips 6 in Mathematics

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