The great blocks of stone that made the py ramids weren't lifted into place they were rolled up ramps, or what we now call inclined planes. The inclined plane, one of the simple machines, allows you to raise great weights with small forces. This model lets students experiment with this principle directly, by seeing how much force is needed to pull the cart up the ramp. This classic wooden model offers children a basic concept of the laws of physics. Desktop sized.

• Illustrate the principle behind the operation of a simple machine. Learn basic physics principals in a direct, hands-on fashion
• Model contains a detailed activity guide which includes the history of the model, practical applications and classroom experiments
• Handcrafted from durable rubber wood, a high quality hardwood
• Student-sized
• Great for center activities