Author: stithscienceexchange
A middle school teacher for 30 years (well, 29...), I love sharing ideas with other educators, and anyone else interested in science education. I particularly love building science devices of all kinds and creating YouTube videos. My YouTube channel is Douglas Stith, and my personal website is www.stithsonianscience.com. View all posts by stithscienceexchange
stithscienceexchange.com 