Acquaint your students not only with a variety of motion and machine experiments, but also with the scientific thinking that produced many of them. Activities start with a question, and include a materials needed list, step-by-step procedure, conclusion and an afterthought. A second page reiterates the question, asking the students to fill in a report with their guess, what they did, what their senses told them, and room for them to draw a picture of what it looked like. Learn roughness can affect how objects move, friction creates heat and more! Word search key included. 96 classroom reproducible pages, softcover. Grades 1-3.