Simple Machines, Grade 3-4 Retail Price: $5.95 Our Price: $3.49 Save: 2.46 (41.34%) Availability: In Stock        Supplement your science studies with the ECS Brown Bag Science: Simple Machines workbook! Experiments will provide your child with additional practice opportunities as they complete activities on force, friction, gravity & density, wheel & axle, the wedge, the screw, the pulley, the inclined plane, and more. Called 'Brown Bag Science' for the format, these experiments are designed to have materials supplied by parents and brought to class in brown paper bags. Each experiment includes a list of materials needed and experiment directions, a form letter to parent with what materials are needed, and a worksheet for students to fill out. 35 classroom-reproducible pages, softcover. Line-listed answer key included. Grades 3-4. Similar Items you may enjoy! Simple Machines Author: D.J. Ward and Mike Lowery Our Price: $6.49 Simple Machines Our Price: $20.99 Simple Machines Author: D.J. Ward and Mike Lowery Our Price: $5.49 STEM, Simple Machines Activity Set Our Price: $24.99

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