20 Experiments with water tension or surface tension
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In this video I am going to mount you many experiments with the tension of the water or the superficial tension.
But what is the point of knowing the superficial tension?
+ To check the cleanliness of the material.
+ In order to know if it is collable and / or printable or the reverse.
+ To know if has undergone treatment
The phenomenon of surface tension is exploited naturally by insects to remain on the surface of the water. A number of simple experiments, allow to highlight the surface tension. For example, a trombone placed delicately on the surface of the water.
List of Experiments:
1 - Surface tension in a test tube
2 - Surface tension on a coin
3 - Surface tension with pepper and water
4 - Surface tension with milk and dye
5 - Surface tension on tree leaf
6 - Surface tension of a glass of water
7 - Floating metal
- 7a Floating a Trombone
- 7b Floating a cutter blade
- 7c Make a float a safety pin
- 7d Floating a needle
- 7e Float a Thumbtack
8- compass with water tension
- 8a compass with trombone
- 8b compass with cutter
- 8c compass with needle
9 - force of water tension with a bottle with several holes in a single jet
10 - bottle with hole in the plug that does not flow
11 - Water tension force with ring and wire
12 - Water tension force with rectangle and rod
13 - The tension of the water makes it possible to reduce the geometric surface of the faces of soap of the tetrahedron
14 - The tension of the water makes it possible to reduce the geometrical surface of the faces of soap of a cube
Can a drop be placed on the ceiling ?
Can we float metal ?
Trombone floating !
A needle that floats !
Safety pin that floats !
Thumbtack that floats !
How to make a compass with the tension water ?
How to make a compass with surface tension ?