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The density of a solid, liquid or gas is its mass per unit volume. To find the density (∂), you weigh the object to find its mass (M), you calculate the volume it occupies (V), then divide the mass by…
Stoichiometry is a type of math associated with chemistry. In stoichiometry, you perform calculations pertaining to moles (the basic unit of weight in chemistry), masses and percentages. A stoichiometric ratio shows the relationship between the elements or moleclues present in…
A graphing calculator is a powerful instrument that does a lot more than merely add, subtract, multiply and divide numbers. These machines are, nowadays, not so much calculators as they are hand-held computers, similar to cell phones or tablets but…
Woods, forests and jungles are three distinct ecosystems that are often confused by children and adults alike. While all involve trees and wildlife, there are differences between the three – especially between the deciduous, temperate forests and the jungles of…
When you think of a desert, you may picture mirages, sand dunes and, above all, unrelenting sunshine creating sweltering temperatures. If so, you may need to update your fantasies to include snow, ice and bitterly cold daytime temperatures. About one…
Circles are everywhere in nature, art and the sciences. The sun and the moon, through spherical, form circles in the sky and travel in roughly circular orbits; the hands of a clock and the wheels on automobiles trace out circular…
Things Needed Electrical safety gloves Ammeter Power supply Transformers are the backbone of power distribution systems. The VA rating refers to the power distribution rating relative to how much power the transformer can deliver to the load. To calculate VA,…
Field mice are common little mammals. With brown fur, long tails and small rounded ears, the various species of mice can appear quite similar. The field mouse typically measures about five or six inches long and weighs less than an…
A competitive relationship in a biological community includes the plant and animal species within the ecosystem that compete over food, territories and mating with the opposite sex. Competition occurs in virtually every ecosystem in nature. This relationship develops when more…
Bobcats are common wild animals found across the United States. They are often mistaken for other cats, such as mountain lions or house cats, but tend to be about twice as big as a domestic cat and smaller than a…
