As you drink an ice-cold beverage on a warm day, the outside of the glass or bottle becomes wet. Why?
Water forms on the outside of a cool glass on a hot day due to condensation. The air around us has water in it; the water is in a gaseous form, commonly called water vapor. Typically, the hotter the day is the more water is evaporated into the air. When you have a glass with [...]
Why does air cool as it rises through the atmosphere?
The first thing we must realize is that temperature and heat are two different things, they’re closely related but one can be affected while the other is not. We all know that warm air rises, if it didn’t the people in hot air balloons would be in trouble. This warm air will cool as it [...]
How much does a cloud weigh?
A tough question to answer since clouds come in many different shapes and sizes. On some days I look up at the sky and see nothing but cloud in every direction, I’m scared to think how much those clouds weigh, so I’ll just talk about the nice fluffy clouds we see on nice summer days, [...]
Why is the Sky Blue?
The sky is blue on a clear, sunny day because molecules in the air scatter blue light from the sun more than they scatter red light. The scattered light is what we can see with our eyes – which in simple terms is why the sky is blue. The light from the sun is white [...]
