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Because the rain forest is a very diverse habitat, it contains many different species of plants and animals in close proximity to each other. These species often have complex relationships, many of which are beneficial to the participants. Such relationships…
It takes longer to heat water to a higher temperature than it does to melt ice. While this may seem like a baffling situation, it is a major contributor to the moderation of the climate that allows life to exist…
Electromagnetic phenomena are everywhere from your cell phone’s battery to the satellites that send data back to Earth. You can describe the behavior of electricity through electromagnetic fields, regions around objects that exert electric and magnetic forces, which are both…
Organic sedimentary rocks are one of three kinds of sedimentary rocks; the other two types are clastic and chemical. While clastic sedimentary rocks are made of sediment types of varying size and composition, chemical sedimentary rocks are made of minerals…
An algebra student gets stuck when exhausting all factoring steps, can’t find the answer, but forgets to consider a prime polynomial. These polynomials, like prime numbers, are in lowest common terms and you cannot factor them further. Here is how…
Algebra students often have a difficult time understanding the relationship between a graph of a straight or a curved line and an equation. Because most algebra classes teach equations before graphs, it is not always clear that the equation describes…
Most students are first introduced to physics in the form of kinematics–the branch of physics that studies only the motion of objects. They use equations to calculate velocity, position and acceleration to learn how to apply mathematics to the real…
The Earth is a dynamic planet. It is made of layers: the crust, the mantle and the core. The mantle itself is an interesting zone, with differences between the upper and lower mantle. It helps to learn the upper mantle…
Ocean plants and animals come in a variety of shapes and sizes, from the tiny shrimp-like krill to the massive blue whale that feeds upon it. Across the vast expanse of the Pacific Ocean, a huge number of marine species…
From frozen icy tundra near the Arctic Circle to lush tropical rainforests straddling the equator, the Earth’s climate changes dramatically with each shift in latitude. In between these polar and tropical extremes, many of the world’s major cities experience more…
