The science fair is on feb. 22 and i havent even picked a topic!!!! HELP!!!!!
2007-01-12 14:11:26 · 7 answers · asked by cutiebugg0806 1 in Science & Mathematics ➔ Other - Science
im also in the 8th grade
2007-01-12 14:19:21 · update #1
Get some petrid dishes and place one in each of your classrooms. Find out which classroom is the dirtiest.
Make a clay model of one of the human organs - brain, heart, lungs, etc.
Find out which brand of handsoap is most effective.
2007-01-12 14:21:10 · answer #1 · answered by LadyJag 5 · 0⤊ 0⤋
i came in second in my school fair by building a model windmill, i bought a little motor connected it to a shaft on which i attatched cardboard flaps on wooden rods, i then took the positive and negative wires from the motor connected to a simple voltage meter. Then i blew a fan on the windmill and for each test i tried different angles to figure out which windmill angle extracted the most electricity in milliVolts. You can say how windmills are important environmental issues etc. its truly a croud pleaser to have a model windmill on display.
the year after i was a finalist in my school again by testing for phosphate levels before and after the sewage treatment plant, i got a tour and took samples from inside the plant which impressed the judges, i found out the water put out by the plant put out cleaner water by a phosphate standpoint. the judges like to see hard work, and going the extra yard (getting a tour with samples)
2007-01-12 23:06:37 · answer #2 · answered by joe g 2 · 1⤊ 0⤋
Does processed food have more or less sugar than natural foods?
get some diabetic strips, and dip the strips in a few different foods, natural and processed, and then record the result.
You should do good on this one. It got me all the way to district.
2007-01-13 12:29:11 · answer #3 · answered by qwerty 2 · 0⤊ 0⤋
What freezes first hot or cold water? Trust me this is very very easy. I did it and got first place at my school. It took like maybe four hours of checking on the water every half hour. I just boiled one cup of water and had another cup of water in the refrigerator and put them both in my freezer at the same time. I put a thermometer in them both and recorded the temperature every half hour until one was at a freezing temperature and had ice in it.
2007-01-12 23:15:49 · answer #4 · answered by Becky 2 · 0⤊ 0⤋
1. Is using two eyes to judge distance more accurate than using one eye?
2. What gets warmer sand or dirt?
2007-01-12 22:25:12 · answer #5 · answered by . 4 · 0⤊ 0⤋
Volcano
2007-01-12 22:17:05 · answer #6 · answered by JasonM 7 · 0⤊ 1⤋
monitor plant growth based on different pH of soil...while controlling other factors
2007-01-12 22:31:53 · answer #7 · answered by Anonymous · 0⤊ 0⤋