Explore physics and chemistry as you build a spud gun, T-shirt cannon, marshmallow shooter, clothespin snap shooter, blowgun, and even Leonardo da Vinci's steam cannon! Includes step-by-step instructions, detailed diagrams and supply lists, and fascinating explanations of each machine's origins. Strong emphasis on safety from an engineering professor; close adult supervision recommended. 159 pages. Recommended Ages: Ages 12 and up Availability: In Stock
Author: llllllll/////////kkkkkkkkkkooooRating: 5 out of 5 starsit rocks
Author: Heather FenstermakerRating: 4 out of 5 starsThis was bought for my 12 year old son. He loves this book and cannotwait to get t he other two. There are a lot of projects that NEED adult help and supervision but a good book.
Author: SandraRating: 4 out of 5 starsBought for an older grandson for Christmas. Very detailed