Have you ever wished that you could observe underwater creatures undetected? Or watch the very moment a caterpillar becomes a butterfly? Or create your own rain? Well, with Scientific American Great Science Fair Projects, you can! Enter the fascinating world of Scientific American–the ultimate science authority–and learn how to build an underwater periscope, photograph a lunar eclipse, grow hydroponic plants, and much, much more! From creating your own non-newtonian fluids (slime, putty, and goop!) to teaching a sow bug how to run through a maze, you’ll be astounded at the number of incredible things you can do with Scientific American Great Science Fair Projects. Based on the long-standing and well-respected “Amateur Scientist” column in Scientific American, each experiment can be done with ordinary materials found around the house or that are easily available at low cost. Whether you’re looking for a great idea for your next science fair project, want to astonish your friends and family with your discoveries, or are just intrigued by the world around you, you’ll find endless hours of scientific fun in this project book!