BALL and RING

Demo Number 074
Location Shelf 10
Description This demonstrates the properties of thermal expansion of metals.
 Related Demos 092
Tips
  • Two sizes of rings: SMALLER will allow the ball to pass through when ONLY when the RING IS HOT, the Larger RING (blue tape on the handle) will only allow the ball to pass through when the BALL IS COOL, the brass ball or rings are heated to change the result.
  • PLEASE, cool down the metal parts in the bucket with cold water before you put the demo back in the box.
  • When using the ball and smaller ring, take care not to let the ring cool enough to get stuck over the ball or it can be difficult to remove.
  • You will need a Propane fuel cylinder and torch (shelf 57 or by the red toolbox).

Want to check out this demo?

Visit the reservation page!

This Demo is Part of the following Categories: 4A30 Solid Expansion