How are mountains formed? What makes the air we breathe? What causes the ocean waves? Now you can learn the answer to these and other questions about the earth, sea, and air through 101 fun, safe, low-cost experiments and activities that can be performed at home or in the classroom. In this book you will use a tennis ball and a marble to demonstrate a solar eclipse. You'll make a peanut butter and jelly sandwich to understand sedimentary rock formation. And, with the assistance of a Slinky and a helper, you'll learn about the motion of water waves.. Each of the 101 experiemnts is broken down into its purpose, a list of materials, step-by-step instructions, expected results, and an easy to understand explanation. Every activity has been pretested and can be performed safely and inexpensively in the classroom or at home.