After you have watched the Cloud Types video, you will probably want to practice identifying the common types of clouds. The questions are chosen randomly, so this quest will be different each time you reload the page.
Identify the cloud(s) in each of the photographs. Then click the text bar below the picture to see the answer.
This is another of those fun bits of science that many of us think we understand until we really start to look at it, or even better, try to explain it to someone else. Then we reach a point where it becomes obvious to ourselves, and to our audience, that we don't understand it as well as we thought we did.
One of the interesting things at St. Augustine, Florida's Oldest House is a large stone bowl with a bucket underneath. The stone bowl is half full of muddy water and there is a slow, steady drip of water from the bottom of the bowl to the bucket. Although the water in the bowl is a bit muddy, the water in the bucket is clear. Why?
This week we had a marvelous electrical storm to the west of our house. It was far enough away to make Junie Moon the Dog happy, but near enough for some nice photos. Since it was night, I used the same settings that I use for star photography. I put my Nikon D7000 on the tripod, with an 10-70mm lens. I set it for manual exposure, and set the shutter for a 30 second exposure, and turned on long exposure noise reduction. I hooked up my PClix, a marvelous device for taking photos at set intervals. Then I just let it click away.
I recently presented a session on teaching electricity at the Utah Science Teachers Association Conference. On my way home, I did quite a bit of photography of the snowy landscape, but one roadside slope caught my eye. Driving past, I saw something that I had only seen in books, and a few recent weather articles. Snow rollers! They are usually quite rare, and of the hundreds of snowy road cuts that I passed on the drive home, this was the only one that had them.
When you read that 75% of the Earth's surface is covered by water, what does it really mean? The answer goes far beyond just a simple fact. As with many topics in science, the deeper you go, the more you find.
The Water Cycle is one of the major topics students are expected to understand in science. This is because water is such an important resource for food production, industry, and daily life. To help understand how the water cycle works, lets make a working model, using some common, household items.