Recent content by Bluesy

Thank you!

We used the conductivity meter posted above yesterday. By doing so we eliminated the fruit battery dimension of the experiment and focused solely on the conductivity of electrolytic solutions (mostly acids and basis). The conductivity meter only uses whole numbers, 1-10, and it seemed to read...

Excerpts are attached. Thank you!

Thank you again. If the CNDT01 would show higher conductivity readings for the acids and bases and lower readings for the distilled water then I would be happy enough, as my son could do a very simple table with very basic conductivity results and pH levels. I don't know enough about the specs...

Thank you. We might forget the zinc/copper and voltmeter and use something like this (https://www.amazon.com/dp/B08R39SKXS?tag=pfamazon01-20 United Scientific™ CNDT01, Electric Conductivity Tester ) to test conductivity. Along with pH strips to show acid/base. Conductivity seems simpler somehow.

Hello, My 10 year old is doing a science project in which he places a zinc nail and copper nail in a liquid, hooks each nail up to a voltmeter and then measures the recorded voltage for each substance. Liquids include lemon juice, distilled water and ammonia. The book from which he got the...

Great explanation, thank you!

Thank you! That is helpful.

-We may trace/color the diagram directly on the poster. I'm not familiar with Visio but will check it out! -Yes, we will include references--good call. -Thank you for the search suggestions. I didn't even think to look at YouTube. The first video is great!

Thank you for the welcome! And thank for the reply! Yes, my son keeps correcting me--I'm continually mixing up the words "concave" and "convex" during this project. I have corrected the title. I think we would like to combine the water diagram you posted, since I really like the lines...

I've read that the refraction of light at the boundary of a medium can be described as follows: -a line of connected people marching. one side of the line enters mud, and slows down. This causes the non-mud side to pivot towards the slower side, which then causes the line to change direction...