7th grade science fair?

Question

my friend is in 7th grade and needs an idea for her science fair project. any ideas tht will get her an A?

Answer 1

i have a good idea.

try the "invisivle water" trick. get a big plastic conteriner and a bigger pice of cardboard to cover the top of the conteiner. now you will be needing  Sulfur Hexafluoride, i dont know where you can buy it but look around. once you have everithing cover the container with the carboard allmost compleately but leve a small gap to put the  Sulfur Hexafluoride gas in. just put some of the gas in it but leve te rest covered. do this for some time then stop pouting  Sulfur Hexafluoride in and remove the carvoard slowly, SLOWLY and get a aluminium tray and gentely plase it on the container. the aluminium tray should magicly "float" it makes the impresion as if it was floating on water it will keep like this for some itme but it will eventualy slowly "sink" to the bottom. you can get a glass and you can pretend to pure inbisible water from the container to the aluminium tray so it looks like it is sinnking becouse you are puring "invisible water" on it. the tray only lasts a cuple of seconds i think (i haven't done it myself) but if you do it right it should look like this

http://www.youtube.com/watch?v=tAsOfqCy4...

another idea is the "hot ice" trick. it gives the inprecion of water freexing instantley when you tuch it. here is a video showing you how to do it. http://www.youtube.com/watch?v=WxuhwAf9M...

but you better read the cooments they can help you.

i am not responsable for any thing that hapens with the vinegar with baking soda but if you follow the instructions  then you have nothing to worry about. (i think the instructions are in the comments, not sure look around)

Good luck hope i helped : )

sorry for any bad spelling

Answer 2

WOW, It must be sci. fair time

I just answered another sci fair question. I did my 8th grade sci project on this

BENHAM'S PATTERN DISC

it is interesting and easy!

Type it into your favorite search engine and check it out... It won me 1st place

If you still need help

[e-mail]

Answer 3

I was going to do this for mine, but I decided on something else.

See what angle and how much force is needed, (approximately), to get a basketball in the basket.

Or, what brand/type of washing detergent gets rid of stains the best.

Answer 4

One of my kids did one similar to PMO.  She took 5 house plants and made different solutions of water and vinegar and tested the affects of acid rain.

Another made boxes and covered them with different types of roofing material.  Then check the temperature in them at different times of the day.  

Answer 5

compare foods from different brands and see whats healthier.

Answer 6

i went to county for doing this one. its called soil effects. you grow a plant, i grew grass with different soil: store bought soil, organic soil, and regular dirt.