Grades: 1-5 Time: 7 projects; 20-30 minutes each. This book is an amazing book full of hands-on activities. Learn how to make Invisible Magic Ink, Bursting Bag, Safe Slime, Shooting Bottles, Crayon Candle . Building them using easy materials from around the house, recycled items or stores. Fun with Science, Technology, Engineering, Art and Math project ideas. It is a great way to acquire 21st century skills and STEM learning. Inside this book you will find projects on: Invisible Magic Ink, Burst