Science

Determining Percentage Percent means “for every 100” or “out of 100.” The (%) symbol as a quick way to write a fraction with a denominator…

Neodymium Definition Neodymium is a shiny, silvery metallic element of the lanthanide series. It is present in significant quantities in the ore minerals monazite and…

Cyanobacteria Definition Cyanobacteria are any of a phylum of photosynthetic bacteria that live in water or damp soil and were once thought to be plants.…

Comparing Decimal Numbers If there are two decimal numbers we can compare them. One number is either greater than, less than or equal to the…

Paranoia Definition Paranoia is a psychotic disorder characterized by systematized delusions, especially of persecution or grandeur, in the absence of other personality disorders. It is…

Scheelite Definition Scheelite is a white, brownish, or greenish mineral, usually fluorescent, consisting of calcium tungstate in tetragonal crystalline form with some tungsten often replaced…

Schizophrenia Definition Schizophrenia is an illness affecting the brain and rooted within the biological functions of the brain cells. The word schizophrenia literally means a…

Calculation of Sales Tax A sales tax is the money paid to a government for the sales of certain goods and services. Usually the laws…

Glutamic Acid Definition Glutamic acid is a nonessential amino acid (C5H9O4N) occurring widely in plant and animal tissue and having a salt, monosodium glutamate that…

Trigonometrical identity An equation which is true for all values of the variable involved is called an identity. An equation which involves trigonometric ratios of…

Tungsten Definition Tungsten is a hard, gray to white metallic element that is very resistant to corrosion. It has the highest melting point of all…

Place Values of Decimals Decimals are numbers with one visible point or dot somewhere in the number. This point is called the decimal point. If…