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The thermosphere is the highest section of the Earth’s atmosphere. It starts about 53 miles above sea level and extends to between 311 to 621 miles. The exact extent of the thermosphere varies, as it swells and contracts based on…
Squaring a number, or algebraic expression that contains a variable, means multiplying it by itself. Squaring numbers can be done in your head or on a calculator to get an actual answer, while squaring algebraic expressions is part of simplifying…
Of the nine planets in our solar system, Jupiter is the largest and is part of a group known as the gas giants. It is the fifth planet from the Sun, with an orbit of around 500 million miles, which…
Ecosystems are complex communities of organisms and inanimate materials that interact to support the living things within the ecosystem. Ecosystems typically contain plants and animals that eat, reproduce, compete and engage in many other complicated interactions. As a result, the…
Hardness in water is a primary concern for industries, households and municipal water systems. The hardness in water when present in quantities above the desired level cause problems like scaling, decreased action of detergents and frequent corrosion. Besides these problems,…
Seashells can continue to grow throughout the life of the creature inhabiting them, which can be a long time–Bangor University found evidence of a 400-year-old clam. Scientists have established methods to determine the life span of certain mollusks residing in…
A true equation is a mathematically accurate equation. A false equation is an incorrect equation; it says something erroneous or untrue. For example, 2 = 3 is a false equation, because 2 and 3 are different numerical values. To make…
By their very nature, caves are generally dark environments. Since plants rely upon photosynthesis (a process that requires sunlight) to make food, they are not typically found in the darkest parts of a cave. You might wonder if there are…
Cricket anatomy is similar to grasshoppers and katydids – all of these insects are members of the order Orthoptera. Orthopterans have chewing mouthparts and three sets of legs, with the back two being longer and stronger to help them jump.…
Pines are a subgroup of the conifers, which includes all cone-bearing trees. The pines can be distinguished by their whorled clumps of needles that meet at a single point of attachment to the tree and their unique pine cones, which…
