Create you own Water Cycle
Think of terms such as evaporation,condensation, precipitation and collection and the water cycle diagram springs straight to your mind. However have you considered that you can convert the simple water cycle into a science project? It is not too difficult if you put your mind to it. Consider each stage and the way you can make it happen.
Start with evaporation. All you need is some way to boil the water. You can do this by using a flame under a test tube of water. Now connect the top of this test tube with a long glass pipe. Remember the cooling process will take some time to kick in before condensation begins.Angle the glass tube at a downward angle to a test tube in which the precipitation occurs.
Now the lower test tube will collect the water that was evaporated from the original test tube. Here we have the full set of processes that the water cycle has. Simple to make if you conceptualize it well. Just make sure that the glass tube which joins the two test tubes is secured firmly.
In case it is not sealed well all the water vapour will escape your experiment area and there will be no water cycle on display. For the display board you can add a colorful diagram showing the water cycle taking place in nature. You can add definitions of the various processes involved in the water cycle. You can do so much with the display board.