Toy: Learning Resources Simple Machine Set - Learning Resources

Book: Simple Machines (Starting with Science) - Kids Can Press

Toy: KNEX Education - Intro To Simple Machines: Levers and Pulleys - K'NEX

Office Product: Learning Resources Simple Machines Activity Cards Set - Learning Resources, Inc

Toy: Ignition Series Physics Simple Machines - Thames & Kosmos

Book: The Kids Book of Simple Machines: Cool Projects & Activities that Make Science Fun! - Mighty Media Kids

Toy: KNEX Education - Intro to Simple Machines: Wheels, Axels and Inclined Planes - K'NEX

BISS: ETA hand2mind, Simple Wooden Machine Collection: Work, Force, and Energy Models, Set of 12, (55982) - Crusader Educational Inc.

Toy: KNEX Education - Intro To Simple Machines: Gears - K'NEX

Book: Simple Machines (Lets-Read-and-Find-Out Science 2) - HarperCollins

Book: Simple Machines, Grades 6 - 12: Force, Motion, and Energy (Expanding Science Skills Series) - Mark Twain Media

BISS: ETA hand2mind, Simple Wooden Machine Collection 2: Inclined Plane/Cart, Pulley, Lever, Wheel & Axle Models, (23120) - Crusader Educational Inc.

Toy: Learning Resources Stem Simple Machines Activity Set - Learning Resources

Book: The LEGO Technic Idea Book: Simple Machines - No Starch Press

BISS: Simple Wooden Machine: Inclined Plane and Cart Model, (3851) - Crusader Educational Inc.

Toy: LEGO Education DUPLO Early Simple Machines III Set 4517242 - LEGO Education

Toy: KNEX Education Simple and Compound Machines - K'NEX

Toy: KNEX Education - Simple Machines Deluxe Set - K'NEX Education

Book: Simple Machines - Evan Moor Educational Publishers

BISS: Simple And Motorized Mechanisms Base Set - ToyCentre

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