Smithsonian Maker Lab and Stem Lab books

New, Maker Lab and Stem Lab books. Awesome science experiments that give list of supplies need as well as the difficulty level. They then explain How it works!! I have 2 sets, otherwise I would not part with these!!! Pics show what experiments are in these 2 books. Also has a glossary in back that explains what this science terms mean. Great for all grades. You will receive both books!!