|Use this product to effectively demonstrate the principles of
reflection and refraction. An acrylic water tank, 16cm in
diameter, has a 360° scale and a movable arm carrying a laser
that is activated by a momentary switch. When the tank is
partially filled with water, the angle of refraction can be
demonstrated and easily measured because of the clearly visible
beam of light from the laser.
Includes a detailed activity guide. Batteries are also
Dimensions of the product are 12" x 8" x 9".