Ecosystems (Science Fair Projects)
By Natalie Rompella.
Description
Projects in this book include: My Personal Ecosystem; I’m Crowded!; Rain Down on Me; Invaders!; Water Cleaned with Dirt?!; What was for Lunch?; The Disappearing Apple; Puddle and Pond pH; No Good Water. - from Amzon
ISBN(s)
1403479151, 9781403479150
