Predict the weather using the same instrument utilized by Charles Darwin during his voyage on the HMS Beagle! The storm glass was invented by Admiral Robert FitzRoy in the 19th century. Ostensibly, the mixture of distilled water, ethanol, potassium nitrate, ammonium chloride, and camphor will form a crystalline substance that reacts to temperature changes in order to predict whether the weather will be fair, rainy, stormy, cloudy, or windy. While the efficacy of the device is dubious at best, the Storm Glass is an excellent conversation piece for your desk, and represents an important step in the history of meteorology. Whether the glass proves accurate or not, noting how it changes and when can be a fun experiment and the device, which features a beechwood base, is an aesthetically pleasing addition to offices, studies, or bedrooms. Makes for a fun gift for anyone fascinated by the chaotic mysteries of the weather.
The cards show the name of the element, the atomic number, group, natural state and common usages!
Great microscope for viewing both slides and 3D objects such as flowers, bugs, rocks and more. Includes all accessories!
Head into the lab for an in-depth investigation of genetics and DNA!
With 23 hands-on experiments, you can investigate specific weather phenomena as well as the climate system in general.
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
Easily assemble a working alarm motion detector!