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Students try this: Make your own model of a siphon

Step one: Gather the materials.

You'll need:

Two beakers or glasses half filled with water

Rubber or plastic tubing, about 50 cm

Step two: Procedure:

-Fill the tubing with water from the faucet or by immersing it in a bowl of water. Cover the ends of the water-filled tube with your fingers and lower one end of the tubing into each of the beakers. Take your fingers off leaving the ends of the tube under water in each beaker.

-Raise one of the beakers so its water level is higher than the second beaker's water level and watch what happens. Now, switch the levels of the beakers so the second beaker is higher than the first. Watch what happens. Then put both beakers at the same level on the table and watch what happens to the water levels in the beakers.  

What's happening?

Step three: Observe

Write down what you observe.  

Using what you know about science make a hypothesis about why this happens.  

Write down some other ways you think this process could be used.