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Lead is a stable and malleable metal that has been known to humanity since ancient times. While toxic if consumed, lead’s resistance to corrosion and density make it an essential material in the construction of storage tanks and radiation shielding.…
A physician scale, sometimes called a “balance beam scale,” is used for measuring patients’ body mass or weight. These scales use sliding weights that measure mass both in pounds and in kilograms, and are quite accurate. The scale consists of…
The easiest way to find the mass of anything is to weigh it. You’re actually measuring the force of gravity on the object, and technically, you should divide the weight by the acceleration due to gravity to get the mass.…
Steel, a common material in modern machinery and consumer goods used for its strength and resistance to corrosion, is an alloy of iron and several other elements, such as carbon or silicon. Although all steel alloys contain iron, the proportion…
Crustaceans are one of the most diverse types of animal on our planet. They range from microscopic creatures to massive spider crabs whose claw-span can grow up to 11 feet and 9 inches. Researchers estimate that nearly 44,000 species have…
Mammals and reptiles, two of the five classes of vertebrates, are among the most complex animals on Earth. There are approximately 8,240 species of reptiles, including snakes, turtles and lizards, which make it a more diverse group than mammals, of…
Temperate grasslands have significant variations in temperatures with hot summers and cold winters. Precipitation is moderate with just enough rain and snow to distinguish these areas from deserts. Because grasslands have few if any trees, strong winds often blow through…
Both milligrams per deciliter (mg/dl) and milligrams per milliliter (mg/ml) combine mass and volume units to produce measurements of density. While converting from just deciliters to milliliters would result in a greater measurement — since one deciliter can hold a…
The powerful TI-84 remains one of the most enduring tools you’ll find in any math class. Although its versatility obligates you to a certain amount of hunting and pecking through menus for the more complex functions, locating the cube root…
Because of its proximity to the sun, Earth’s surface temperature varies widely from the poles to the equator, but the situation is different on Saturn where the sun appears in the sky as a bright star. On the surface, Saturn’s…
