A Moment of Science
Did "America The Beautiful" get it wrong? "Winter Wheat" on this Moment of Science.
Why don't ants drown every time it rains? Find out on this Moment of Science.
How do biologist find DNA from organism that lived thousands of years ago? Find out on this Moment of Science: "DNA Dirt".
Everyone knows that plants have some pretty good passive defense mechanisms. Learn about plants and their offensive strategies on A Moment of Science.
By the time the average passenger car tire ends up at the scrap yard, it weighs six pounds less than when it was new. Multiply six pounds by the number of tires scrapped each year in the U.S., and we’re talking over three-quarters of million tons of rubber that perform a disappearing act every year!
You may be wondering how grass on football and baseball fields stays so green, especially with all that heavy traffic. Grass on athletic fields is planted over a layer of sand, which greatly reduces the problem of compaction.
In the desert, the absence of water means little or no chemical weathering can take place. Instead, erosion, frost, sedimentation, and the huge temperature fluctuations between day and night break down the rocky surface into sand or gravel.
Carnivorous plants still rely on photosynthesis as their main source of energy. However, because they grow in areas where the soil lacks essential nutrients, they use the insects they capture as a source of nitrogen and other minerals.
Over the past few decades, the earthworm population has severely decreased. Since the New Zealand flatworm accidentally made its way to the British Isles in 1963, it has wreaked havoc on some of the land, devouring fields of earthworms.
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