My 3rd grade daughter is just starting out her science fair project.
Here is her question: Do different solutions affect capillary action?
As she has explained it to me, the following will happen. Using 3 baby food jars, she's going to do colored water transferring via paper towel. She's going to measure what moves quicker: regular tap water, salt water, sugar water, or vinegar water.
Wow, go her!
So, we are doing the paper that needs to be turned in for the OK from the teacher, and it says changed variable....that would be the solutions that she adds to the water?
Measured variable would be the control (the regular tap water)?
So, I'm wondering....what is she going to measure....how long it takes to transfer a set amount of water? And then conclude which solution transfers the quickest?
It's been YEARS since I've had to think about a science fair, so any advice I can pass on to her would be outstanding.