What are some good science fair projects that ninth graders could do that isn't too easy and isn't too hard?

Question

This project can't be senitive and CANNOT INVOLVE VERTEBRATES!

Answer 1

I did one with shells when I was that age, I grouped them all into their individual families, and learned about evolution that way .

but really whatever the person is interested in would be a great prject for them to do.

Answer 2

You should do something that you like doing.
Pick a hobby.
Ask a question about it?
State a hypothesis
Test the hypothesis
Report on the results with some simple graphics.

Say you like go karts.
Say you think that it would be interesting to see how mass on the go kart affected how much fuel it used.
State the hypothesis that the mass of the go kart is inversely proportional to the fuel consumption
Design a test to prove or disprove the hypothesis
Make sure that you are really testing the hypothesis
Conduct the test
Keep really good records of the testing
Put your display together showing the results
THEN
State how it can possibly be applied to the world arround you.
Massive gokart uses more gas.
Maybe cars would use less gas if they were lighter.

an easier one

Hypothesize that helium balloons will change their rate of deflation if the insides of the baloons are coated with different substances.

Design a test of the idea----like get 8 balloons and fill two normally. Spray silicone spray into two before filling them. Spray hairspray into two of them. Coat the inside of two of them with saliva. or something else

Observe what happens several times a day and keep good notes.

Make a display that shown what happened and try to see if you can explain what happened and why.

get it?

Answer 3

I did one while i become a learners concerning to the effects that particular beverages have on the the teeth of your tooth. you employ the teeth spray and spray it on the ends of 5 distinctive, super popsicle sticks. Pour 5 diffrent beverages into cups, placed one stick in each and each, and wait 24 hours. Pull out the sticks and see which one had the better consequence. you additionally can seem this one up on the internet (im no longer fairly effective the place) if my instructions have been perplexing or you decide on extra documents.

Answer 4

make a model for one human organs with clay on peice of cartoon

Answer 5

Which Diaper Holds the most Liquid !!!!!!!!!!!