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I just got a notice sent home saying that all the 4th graders in my sons school have to enter some type of science experiment in a science fair.They gave us plenty of notice, since the science fair is not until next March, however there are different things that are due as early as next month. I never did a science fair when I was in school, so I have no idea how to come up with an idea for him. I thought that some type of dental experiement would be good, since I am a dental assistant and could help him alot on that type.

Are there any websites that would give me ideas?

2006-10-17 14:12:19 · 13 answers · asked by LittleMermaid 5 in Pregnancy & Parenting Parenting

Instructions for this project say "Students will be actively involved in designing a science fair project that uses the steps of the scientific method to solve a problem." So I am assuming that means that there has to be some type of experiment done, kind of like cause and effect. Luckely I went to high school with his science teacher so I am going to call her tomorrow, but I wanted to see what other parents have done with their kids. Thanks!

2006-10-17 14:20:54 · update #1

13 answers

IM IN 6TH GRADE NOW IN 4 I DID HOW SODA AFFECTS TEETH I WENT ON TO THE STATE PROGECT AND GOT SILVER MEADLE

2006-10-18 14:18:33 · answer #1 · answered by dasiy 2 · 1 0

http://www.energyquest.ca.gov/projects/index.html

http://www.energyquest.ca.gov/projects/battery.html

One easy project that doesn't require a lot of time and $ is the battery life project. You can do this by buying a regular flashlight that uses "C" or "D" cell batteries.
-buy 4 different brands of batteries (cheapo and something more expensive like Duracell)
-put each brand in the flashlight, usually as a pair of the same brand, and turn the flashlight on.
-Note the "start time", for instance 3:15 p.m.
-leave the flashlight on until it won't shine, because the batteries are worn out.
-Note the "failure time", for instance 7:30 p.m.
-Do this for each of the 4 brands.
-make a simple chart of how long it took each brand to wear out
-Some conclusions would be "are expensive batteries better" or "are alkaline batteries better than non-alkaline"

Hope this helps.

2006-10-17 14:27:14 · answer #2 · answered by S M 2 · 1 0

You could try . .

"Whose mouth is cleaner, a dog's mouth or a human's mouth?"

(keep in mind the rules of the fair and if mold is allowed etc)

Start off with 4 petri dishes filled with gelatin. Then take a swab of your mouth, another persons mouth, a dog's mouth and another dog's mouth. Put those all in separate petri dishes. Then observed the growth of different molds and fungus on the swabs over a 3 weeks period.

Sounds gross but it's interesting and kids are fascinated . . . It has a "myth-busters" vibe to it and I would say it's a type of "dental experiment."

2006-10-17 14:29:49 · answer #3 · answered by Anonymous · 1 0

when my daughter got her first science fair challenge, i got her interested in the weather. she created her own barometer, watched the weather each and every day, took her own readings regarding barometric pressure, learned all about dew points and the like, and she got an A on the project! i'd suggest that as a first-time project since it's so easily accessible, yet so frequently taken for granted and forgotten that weather observation is actually a SCIENCE! hope this helped...maybe try the weather channel website.

2006-10-17 14:16:09 · answer #4 · answered by vrandolph62 4 · 1 0

You could have him do this one: Get a pan, a piece of raw liver and a coca-cola. Set the liver in the pan, pour the coke over it and watch to see how long it take for the liver to dissolve in the coke.

2006-10-17 18:00:58 · answer #5 · answered by ~Twisted Sister~ 4 · 1 0

i did one with my sons at home a couple of weeks ago and it was easy and not messy.......take a regular not boiled egg and place it in a clear bowl.....put vinegar in it till it is covered....let it sit for a few days....the shell will be eaten away by the vinegar but there is the rest of the egg still contained....kind of like a bouncy ball with a weird rubbery shell....but don't drop it cause it will break.....you can see the yolk and everything.....really awsome!!!

2006-10-17 14:16:40 · answer #6 · answered by polarbaby 5 · 1 0

Demonstrate an example of the concept of inertia. Many ways to do it. Prove whether or not it is quantifiable, in simple fourth grade terms of course, which may prove to be impossible, because laws disprove it. Use your imagination ... it'll be fun

2006-10-17 14:25:09 · answer #7 · answered by Anonymous · 1 0

i once did a project were you studied the differnt amounts of water vapor a plant gives off, you take a normal plant and a cactus and cover them with a plastic, see through, bag. then you put both under a lamp. the normal plant should give off more water cause cactuses reserve more water

2006-10-17 14:16:21 · answer #8 · answered by dea4141 1 · 1 0

i think you should do something on electricity. You should be like which metal is the better conductor. It got me a 103% in 4th grade.

2006-10-17 14:19:55 · answer #9 · answered by Martin Herman King Junior 1 · 1 0

most try a volcano first, it has a reaction from vinegar and baking soda. or making electricity from a potato. the volcano is really a big hit

2006-10-17 14:23:01 · answer #10 · answered by dee-dee 2 · 2 0

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