Clouds

Today we have been investigating clouds. We looked up what the different cloud types are and worked out what type we have today. We then used this information to decide what might happen with the weather over the next 24 hours.

We have tried several experiment to make clouds. Below is a video of our most successful experiment.

To make a cloud you need an empty bottle, blue-tac, rubbing alcohol (brand name Isocol near the plasters in Woolworths), and a balloon pump.

1. Put a small amount of alcohol in the bottle (evaporation will begin).
2. Put the balloon pump into the bottle neck and seal around it to make the join airtight with blue-tac.
3. Pump air into the bottle to raise the air pressure inside.
4. Quickly pull the pump out lowering the air pressure again.
5. As the pressure lowers the evaporated alcohol will condense and form a cloud.