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If you want to know the atomic mass of an element, you’ll find it listed under the symbol for that element in the periodic table. The units aren’t included with the mass, but they are understood to be atomic mass…
Ounces, abbreviated as oz., come in two forms — measurements of mass or volume. Mass ounces further are broken into two categories, the avoirdupois ounce, most common in the United States; and the troy ounce, often used to measure jewelry.…
Standard score is a statistics term. The standard score shows how far away from the mean a score falls. It is also known as a z-score. Using a z-score table, you can find where the score falls on the table…
Ammonia (NH3) is a gas that readily dissolves in water and behaves as a base. The ammonia equilibrium is describe with the equation NH3 + H2O = NH4(+) + OH(-). Formally, the acidity of the solution is expressed as pH.…
Animals hibernate by slowing their metabolic rates to consume less energy during seasonal periods of food scarcity and extreme cold weather. Some animals, including crickets and many other invertebrates, actually go further by entering complete dormancy. In the process called…
To calculate how much a length of steel will increase, you need to know how much the temperature increases and the original length of the steel. Like most materials, steel expands when the surrounding temperature increases. Each material has a…
The planet Earth consists of a series of distinct layers, each of which has a unique structure. The top layer, known as the crust, is the thinnest layer of the Earth with a thickness of 30 km (18.6 miles). Below…
Temperate forests exist all over the world. There are two types of temperate forests. The largest temperate biome, the temperate deciduous biome, exists in North America, Western Europe, Asia and Australia. The much smaller temperate rain forest only exists along…
Fireflies, also known as lightning bugs, are not actually flies. The insect commonly called a firefly belongs to the Lampyridae family of beetles. Most insects in North America have a short lifespan, often surviving only one season. The adult firefly…
Both African and Asiatic lions will seek out specific habitat features for the purpose of shelter, whether it’s to rear their young or beat the heat. Indeed, these powerful big cats — such explosive beasts in action — spend most…
