I need to have my DS turn in his topic for the thrid grade science fair (ahem) yesterday. I am clueless, anyone have an easy and cheap idea?? Thanks

3rd Grade Science Fair Projects, Ideas, Topics for All School Grades

this link may help you

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Brenda

GO #24 JEFF GORDON

My kids have done, magic muck, of course the ever famous tornado in a bottle. They really enjoyed the magic muck. Part of the board decorations was pictures we took of the supplies and the kids making it.

An easy one that was an example project at our school's science fair this year was the question of which color is absorbed better by flowers. Whoever did it in the past got an A all they did was buy some plain white carnations sliced the stem, and put them into some food coloring. The flowers absorb the colroing and it turns the petals whatever color they have absorbed. They had a simple but pretty bpard and kept the carnations to display around their board as well. Another with flowers has been done by a girl my daughter knows for two years now and she keeps expanding on it. She has taken roses (you could use any flower) and has left some in plain water and has added sugar to the water of some and asprin to others so see which lives the longest. She also kept her flowers to show with her board. her project went as far as the district fair this year. One that was really populat with the kids was the mentos/diet coke project the kids loved it and it you do a search ffor it online you'll find lots of info about what different people have done with it. A neat thing you could do on your board for that is to glue some mentos on the board as bullets for important facts or as a border. Is your science ffair sponsored by anyone? Ours is sponsored by our water company so a lot of kids try to do something having to do with water. A good one we have seen is the measuring how various materials will fliter water, you have to muddy up some water first, but you could use things like a coffee filter, a nylon, a sponge, and cheesecloth to fliter the water, and most water companies have a machine that you can put the water through to see how clean it is. Third grade seems early to be starting science fair projects, wehahve two girls and have been doing them for a couple of years now, it's always a pain to come up with ideas here too so I bid you good luck with this.

My Dd is in 3rd and this year we took regular indoor nails and put them in different types of water - beach water (we live on the coast), rain water, tap water, and distilled water. We left the nails in the water to rust - it was fun and easy - we took pictures along the way to show progress. The difference in "weight" was not enough to weigh with the postal scale we had so we used "visual" changes to determine which rusted more. She got 3rd place in the school.

A friend of ours did a popcorn count-she got several different types of microwaveable popcorn, and popped it all. Then she counted the unpopped kernels as well as the popped kernels in each bag and noted the different. Another friend did a shampoo one. They used several different types of shampoo and bought some fake hair at the store, and used the shampoo to see which lock came out the softest.

my elementary school project when I was younger was seeing which liquid grew plants the best: water, 7 up, coke or salt water. Easy, cheap (had to buy 4 small potted plants plus soda) and I got an "A".

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