Force of Surface Tension – 2A10.00

Floating Metals – 2A10.20

FloatingMetal1_2A1020 FloatingMetal2_2A1020

  • Place the needle on a bit of tissue and place on the surface of fresh water.
  • Sink the tissue with a stick, leaving the needle floating.
  • Add a little soap to sink the needle.

Location: Jacobs B122 – Shelf 022

Surface Tension Bottle – 2A10.60


  • A flask has a screw top cork with a small hole.
  • Insert a slender object through the hole to show that a hole indeed exists,
  • Fill the flask with water and insert the cork and invert it.
  • No water will exit through the hole.

Location: Jacobs B122 – Shelf 280