This weather ball is based on Goethe's simple design for a barometer. The glass globe is attached to a sturdy base with a funnel tube on one side. The liquid in the tube rises and drops depending on the weather. When the weather is fair, the air pressure is high and it keeps liquid from rising very much in the glass tube. When the weather is stormy, the low air pressure can't push through the funnel as well, and so the liquid rises higher in the tube as the storm worsens. During severe weather, such as a tropical storm or tornado, the liquid in the weather ball would overflow! An instruction sheet is included to fill the globe properly and proof it so it is ready to show weather patterns.
My Science Perks is FREE! Just place your order while logged in to your Home Science Tools account and you'll automatically earn up to 6% back when your order ships!
We want this item to be alive when you get it! Therefore, we need to
know when you'll be home to receive it (minimizing the package's
exposure to the elements). Please specify a delivery date, Wednesday
- Friday that's at least 7 days from today.
We get it. Science can be messy. But Home Science Tools' products and service can handle it.
Our products are durable, reliable, and affordable to take you from the field to the lab to the kitchen. They won't let you down, no matter what they're up against. Whether it's (over)eager young scientists year after year, or rigorous requirements that come once-in-a lifetime.
And if your science inquiry doesn't go as expected, you can expect our customer service team to help. Count on friendly voices at the other end of the phone and expert advice in your inbox. They're not happy until you are.
Bottom line? We guarantee our products and service won't mess up your science study—no matter how messy it gets.