Grow Your Own Groovy Green Roof

Photograph of a hydroponic green roof made of sponges with green sprouts on top.

Did you know you can grow plants without soil? Hydroponics uses water and a growth medium to grow plants. NASA has been researching how to use hydroponics in space. The theme for our October subscription box, Water Works, is about how a future Mars Colony could grow their own food hydroponically. This investigation is all about making your own space …

Groovy Hydroponic Gardens Around the World

The advantages of hydroponic growing gardens and farms are gaining interest around the world.  Hydroponic gardens use less water than traditional farming, are environmentally friendly, and produce more plants, fruits and vegetables.  Also, they require less space and use less energy. The hydroponic method of growing can be accomplished through vertical gardens on urban rooftops, in closed domes and greenhouses, …

The Evolution of Hydroponics

Did you know you can grow plants without soil? The method is called hydroponic, a Latin word that means working water.  Although historians believe that the evolution of hydroponics started with the ancient Babylonians and their hanging gardens, it was John Woodward, in 1699, who became the first documented scientist to successfully grow plants using hydroponics. John Woodward John Woodward …

ChemIsTry of Fireworks

Photograph of fireworks over an island overlaid with chemistry symbols.

Here’s the deal behind the Chemistry of Fireworks – and yes, with anything worthwhile, you really need to Try. Fireworks are created by chemistry. The colors are produced by the heating of metal salts, that emit characteristic colors. The atoms of each element absorb energy and release it as light of specific colors. The energy absorbed by an atom rearranges …

International Asteroid Day

Black and white photograph of an asteroid captioned "International Asteroid Day"

International Asteroid Day is observed every year on June 30th. Also known as National Meteor Watch Day, on a cloudless night, STEMists turn their eyes to the sky in hopes of spotting the glow of a falling star. What is an Asteroid? Asteroids are small, rocky objects that orbit the sun. Asteroids orbit the sun like planets, but they are …