Water Cycle - Water (4)
Why can a pin float in water and how can water rise up a thin tube by itself?
MATERIALS: pin, glass of water, paper tissue
PROCEDURE: Try to get the pin to float. Remember the principles of surface tension that your instructor reviewed.
Describe the set-up that allowed the pin to float.
How did surface tension help the pin float?
MATERIALS: clear straw, plexiglass tube, glass capillarity tube, small closed tube, glass of water.
PROCEDURE: Place the plexiglass tube and the glass capillary tube in a glass of water.