Boyles Law Horizontal Mount Outdoor play Can be weighted with bean

Can be weighted with bean bags for stability outdoors

messy play

also helps with colour recognition

54mm in diameter

green and yellow

Boyles Law Horizontal Mount Outdoor play Can be weighted with beanDesigned as a smaller, more economical version of the Standard Boyle's Law Apparatus. The apparatus consists of a horizontally mounted acrylic tube with a graduated scale along one side (scale graduated from 0 to 270cm3). The tube unit is sealed by a standard gas tap next to which is mounted a standard pressure gauge. The effective length of the tube is controlled by altering the position of a rubber stopper moved via a screw thread. Users can select