Which salt will cool a beverage the fastest with ice and water. And can u make my question better

Hello, I'm doing an experiment for a science fair and I would like to know if you could tell me what is the general ingredients in drain cleaner and/or toilet cleaner. I trying to find out the affects of drain cleaner and toilet scrub on the environment. Of course, you can just give me a...

Dear reader, For my science fair project, I plan to do the title... which plant can obsorb the meost odor in the bathroom. For the project I need a device to help me measure how much stinky odor is still left. Do u know where I could buy it? Thanks for your help! ...

I have a science fair coming up and I'm stuck on a question. I need a project that's fast, simple and will get me good grades. Please help Thanks

Hello! My daughter isn`t sure if she would like to do her science project on yawning.She mentioned something about how much bacteria is on a vending machine coke can?I don`t have a clue!HELP! Does anyone know of any unique ones?Aparently that is one thing the judges look for.What about science vs....