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A linear yard is an English unit of length used in the British imperial and U.S. customary measurement systems. In 1959, an international agreement standardized one yard as as exactly 0.9144 meters. If you have the length of an object…
Though they are considered a delicacy in the southern United States and other areas, crayfish (also called crawfish) can easily be found in the wild, swimming in streams and rivers. Commonly caught for fun by children, and occasionally kept as…
For a student who loves sports and is interested in baseball, a science fair project can be created that explores the laws of physics of the sport. Such projects can help students understand complicated lessons in an enjoyable manner. Some…
Scientists evaluate experimental results for both precision and accuracy, and in most fields, it’s common to express accuracy as a percentage. You do this on a per measurement basis by subtracting the observed value from the accepted one (or vice…
Four species of wild cat exist in Arizona, and a fifth may appear sporadically. Of these felids or wildcats, the bobcat and the puma are widespread and quite common. Particularly in the Madrean Archipelago of the state’s southeast — defined…
Rulers are a great tool for learning about, and taking, real-world measurements in a variety of units. Most rulers in the United States have markings on two sides: One side of the ruler has lines for measuring inches and feet,…
Both grams and liters are common units of measure. A gram is a unit of mass equal to about a paperclip while a liter is a unit of volume and is a common allotment of liquids such as beverages or…
Humans categorize life on Earth down into eight different categories, called taxonomic ranks, which narrow down from domain down to individual species. Kingdom, the second broadest of these ranks, has five or six distinct members — according to the United…
Zebras are horse-like animals that live in Africa, with three separate species of zebras found on that continent. The plains zebra is the most common, with the mountain zebra and the Grevy’s zebra less so. Zebras closely resemble stout ponies…
What are some of the differences between foliated rocks and nonfoliated rocks? In geology, key terms related to metamorphic rocks include foliated and nonfoliated. Metamorphic rocks are those that begin as some other kind of rock, whether it’s igneous, sedimentary…
