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Mass, volume and density are three of an object’s most basic properties. Mass is how heavy something is, volume tells you how big it is, and density is mass divided by volume. Although mass and volume are properties you deal…
In geometry, a quadrilateral is a polygon with four sides or edges. There are several polygons that share the characteristics of a quadrilateral. However, while at least six shapes can be considered quadrilaterals, only two have four right angles —…
Projectile motion problems are common on physics examinations. A projectile is an object that moves from one point to another along a path. Someone can toss an object into the air or launch a missile that travels in a parabolic…
The survival of any creature depends on its ability to satisfy its requirements for things like food and shelter while avoiding predators and other harms. Adaptations, either in the animal’s behavior or in its structure, give the animal the features…
What’s the difference between a swell and a wave? A sea swell, meaning a collection of waves produced by storm winds raging hundreds of miles out to sea, is different from waves, which are the product of local winds along…
Photosynthesis is an important biochemical pathway involving the production of sugar (glucose) from light, water and carbon dioxide and releasing oxygen. It is a series of complex biochemical reactions and occurs in higher plants, algae, some bacteria and some photoautotrophs.…
The hot summers and mild winters of Georgia make it a popular habitat for a large number of snakes. More than 40 species of snakes inhabit the state, several of which are black with yellow rings. Some species have yellow…
The number of parts per million (ppm) tells you how much of a specific substance is in a larger mixture. In other words, it’s a measure of concentration and is widely-used in fields like chemistry and even as a measurement…
The mass of an object represents the amount of matter within that object. Measuring mass does not necessarily measure weight, as weight changes depending on the effect of gravity. Mass, however, does not change regardless of where an object is…
Mold spores are everywhere, and many strains grow on food. The spores anchor in bread, cheese, meat and fruit and grow into fruiting bodies that appear as dark, sometimes fuzzy blotches. Some benign strains, such as Penicillium roqueforti, which grows…
