Sloping Up And Down: The Incline Plane (Robotx Get Help From Simple Machines)
Sloping Up And Down: The Incline Plane (Robotx Get Help From Simple Machines)
Sloping Up And Down: The Incline Plane (Robotx Get Help From Simple Machines)

Crabtree Publishing Company

Sloping Up And Down: The Incline Plane (Robotx Get Help From Simple Machines)

  • Binding: Paperback
Regular price $29.85 Sale price $16.07

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Sloping Up and Down explores the benefits and uses of the ramp. RobbO and RobbEE learn that a ramp is called an inclined plane. They discover that ramps are used for building stairs and escalators, and were even used as far back as ancient Egypt to build the pyramids.

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