Thyroid issues can get complicated, so this might help explain a little bit better what dotors do not explain to their patients.. Check out that cool T-Shirt here: https://www.sunfrog.com/Funny-nurse-T-Shirt-Black-Ladies.html?53507
Bottle Ecosystem, This is the most awesome class idea to teach ecosystems! Its self contained and you can observe the activity for the rest of the year. No mess no fuss and all of this cost about 17 dollars.