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Contributed by: Assessment Performance Unit (APU)
You have been given water in a dropping bottle, a hand lens, and
several different materials used on the outside of buildings.
Notice any differences between the materials and use these observations
to suggest what would happen to a drop of water on a chimney pot.
a) Place a drop of water on each material in turn and watch carefully.
- Write down what happens to the drop of water:
- Plastic __________________________________________________________________________
- Painted wood _____________________________________________________________________
- Brick ____________________________________________________________________________
- Metal ____________________________________________________________________________
- Roof tile _________________________________________________________________________
- Glass ____________________________________________________________________________
b) Use your hand lens to look at the surface of each material.
- Now look at the surface of the pieces of chimney pot in the
bag.
- Do not take it out of the bag.
- Say what you think would happen to a drop of water placed on
the piece of chimney pot:
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
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