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Experiments with Water

EXPERIMENT NO. 1 – Learn a Magic Trick with Water 

1. Place a piece of paper in a bowl of water, and leave it to soak for a minute.
2. Stick the wet paper on to a window.
3. Put a dry piece of paper over the wet one.
4. With a pencil, write your name on the dry sheet of paper.
5. Throw the top sheet of paper away, and leave the wet one to dry.
6. Once dry, hold up the paper and say that you can make your name appear on it.
7. Say "Abra Kadabra!"
8. Put the paper in a bowl of water, and magically, the writing will show up!

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EXPERIMENT No. 2 – Learn How Water Evaporates

 

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Try this experiment on a hot sunny day for best results !

1. Get two dishes (a plate, saucer or bowl) and put a spoon full of water onto each dish
2. Place them in a sunny spot, on a table near a window or on the window-cill if theres room.
3. Shade one of the dishes with a book or a piece of card
4. Look at the dishes every hour or so.
5. The water that was in dish that was directly in the sun, will have evaporated.
Water always evaporates quicker in the sun than it does in the shade.

 

EXPERIMENT NO. 3 – More Evaporation

Here's an experiment to learn about how water evaporates. All you need are two empty glass jars and two cotton tea-towels.

1. Fill both of the glass jars with cold water.
2. Wrap a dry tea-towel around one glass jar.
3. Soak the other tea-towel in water and wrap it tightly around the other glass jar.
4. Put both jars somewhere warm - outside in the sun, or in an airing cupboard.
5. After one to two hours, take off both tea-towels, and feel the jars with your hands. The jar that was wrapped in the wet tea-towel will feel cooler than the jar wrapped in the dry tea-towel. This is because the water in the wet tea-towel has been evaporating, and as it did so, it drew heat from the jar inside, so keeping the jar cool.

EXPERIMENT NO. 4 – Make Your Own Rainbow 

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Like Experiment No. 2, you will need a table in front of a window, or a wide window-cill for this one. It will also need to be a sunny day!!!

1. Fill a glass full of water
2. Put the glass of water onto a white sheet of paper in front of the sunny window
3. When the sun shines through the water, a small rainbow will appear on the paper !!!