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The human skeletal system includes bones, joints and cartilage associated with the skeleton. The skeletal system has a number of functions. It provides support and structure for the body and attachment points for muscles, ligaments and other connective tissue. It…
Although they appear placid and almost cuddly lounging in the water, hippopotamuses are considered one of the most dangerous animals in Africa. These semi-aquatic mammals are highly territorial and will topple boats and run down humans who don’t respect the…
Every acid has a characteristic dissociation constant (Ka), which is a measure of its ability to donate hydrogen ions in solution. In other words, Ka provides a way to gauge the strength of an acid. Larger values signify stronger acids.…
A protractor is required to directly calculate the measure of an angle, but you can use geometric properties of triangles to make an indirect measure of the angle. Use the sine formula to infer the measure of the angle from…
Calculating distance and time conversions is an essential part of algebra and most math courses. It is also a part of math that is useful in everyday life and business. Converting distance is much tougher than time because there are…
The second-to-last column of the periodic table of the elements belongs to the halogens, a class containing fluorine, chlorine, bromine and iodine. In their halide form, halogens create compounds with other ions. Halogens Halogens, a series of atomic elements, play…
The deep sea has many secrets. It is the largest basically unexplored ecosystem on earth. The deepest zone of the sea is referred to as “The Trenches” or Hadalpelagic Zone. This zone is defined as beginning at approximately 19,000 feet…
Density is a physical property of a substance that can be determined by scientific experiment. You might have learned that density is mass divided by volume, which means that if you can measure both the mass and the volume of…
The sum and product rules of probability refer to methods of figuring out the probability of two events, given the probabilities of each event. The sum rule is for finding the probability of either of two events that cannot occur…
The typical image of a wasp is a yellow and black striped menace with a painful sting. While many wasps that fit that description, there are thousands of others with varying sizes, shapes, colors and behaviors, including wasps that fly…
