Draws liquid from the well to a container.

Lever and pivots to give a parallel lift.

Experiment with different weights for varied acceleration..

Discover how different rubber band lengths and thicknesses affect the trajectory..

Discover how this simple construction method can hold a considerable load..

Levers activate the gripping hand/pincer mechanism,.

Five syringes control all the movements typically found on an excavator..

Use a series of gears.

We recommend zinc batteries only..

Buzzer sounds if the movable ring touches the shaped wire..

The wooden launch pad is only part that requires making.

Uses a rubber band to drive both sets of wheels.