Hot Cold Water

Hot and Cold Water Demo

Materials:

• 1 pitcher filled with hot water (colored red)
• 1 pitcher filled with cold water (colored blue)
• 1 large container
• 1 plastic divider

Steps:

1. Put divider in the middle of container
2. At the same time pour in both pitchers, one on each side
3. Pull out divider
4. Watch what happens

Description:

The hot water represents a warm front and the cold water represents a cold front. The experiment shows the interaction between the two air masses. Warm air rises over the cold air creating a front of some kind.

When a warm front moves into a mass of cold air it rises over the front, then cools. Condensation could follow that, which would create rain clouds spanning over a large area.

A cold front is when cold air is pushed under hot air. When this happens a very tall cloud forms, causing a thunderstorm in a small area.

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