Question

Does anyone know a good question for science fair?

Answer 1

Hi! What grade level, what have you studied, and what kind of question are you going for?

Answer 2

8th, chemistry

Answer 3

Alright! What kind of stuff have you studied? I wish I could think back to what I learned... Maybe what you say will jog my memory! If this post doesn't turn up ideas, asking in the chemistry section might help!

So, what have you done in your class this year?

Answer 4

we learned about atoms, ionic bonds, mixtures, how to separate a mixture using filtration, magnets, evaporation, and stuff like that.

Answer 5

that's all I can remember at the moment.

Answer 6

That should be good enough! I'm sure there are plenty of things to do with that! I think you should post this in the chemistry section!

And you said you need a question, right?

Do you need a hypothesis? Like something you would try to test in an experiment?

Answer 7

I just need a question.

Answer 8

Haha, my mind is going straight to physics stuff. I have to get into chemistry now...

Answer 9

Okay.. Is it supposed to be a question like "why does this happen?" Do you have example questions from your teacher at all?

Answer 10

The questions an start off with "which" , "how" or 'why"

Answer 11

Ohhh!!! Thanks! Was there anything in class that interested you particularly? And did you do chromatography?

Answer 12

Like this: http://ts1.mm.bing.net/th?id=H.4850492450146272&pid=15.1

Answer 13

the separation of mixtures interested me and no we didn't do chromatography.

Answer 14

The questions an start off with "which" , "how" or 'why"

Answer 15

Chromatography is the separation of mixtures as they are pushed through a suitable material at different speeds... It's a shame you didn't, but hopefully you'll do it in high school! You still did a lot!

So, thinking about separating mixtures...
You can ask why they separate
Why is separation important
how does <insert some element here> get separated out from <some bigger mixture>

There's salt on the roads now, if you're up north.
"Why are the roads covered in white after the snow melts?"
That would be because of evaporation! First, the snow melts a little, then the water dissolves the salt, and then that water won't freeze unless the temperature is much lower. That's how salt does it's job. Then, when the water evaporates, the salt solidifies, and comes out of the solution. It covers the road, nearly evenly dispersed, because it spread with the water and was separated out due to evaporation. The water evaporated, and I guess the solution was to salt-concentrated, and so some salt easily came out of the solution as the salt elements reacted with each other (due to high concentration).

Answer 16

Should I try to think of something else?

Answer 17

That was excellent.

Answer 18

Thank you. You really were of great help.

Answer 19

Awesome, thanks! You did half of the work, you know. Good luck with whatever projects you might have coming up! Take care!

Answer 20

Thank you and you too. :)