Storm Cloud

Watch as the storm cloud morphs to predict the weather. Crystals in the cloud react to different weather conditions.

A fascinating scientific instrument dating back to the 18th century and was used during the Darwin expeditions in 1830. Watch as the storm cloud morphs to predict the weather.

• High quality glass
• Clear liquid: Bright and clear
• Cloudy liquid: Cloudy, possible thunderstorms & rain
• Small dots in the liquid: Humid or foggy
• Large flaky crystals: Cloudy skies, snow in winter
• Threads of crystals at the top: Windy
• Crystals at the bottom: Frost may be coming