Whether we are crossing a street or spelling a word, it seems there are rules for everything. “Look both ways before you cross” or “I before E except after C” are rules that we understand to be…
Energy is the power that we use for transportation, for heat and light in our homes and other places, and for the manufacture of all kinds of products. It has many other uses, too. The development…
Every year, Americans throw away 50 billion food and drink cans, 27 billion glass bottles and jars, and 65 million plastic and metal jar and can covers. More than 30% of our waste is packaging…
The inventor of modern scientific classification was Carolus Linnaeus (1707-1778) a Swedish botanist who classified and described more than 4,400 species of animals and 7,700 species of plants…
As humans, we get by with five senses: touch, taste, sight, smell, and hearing. They work well for us, but other animals have developed many other strange and wonderful ways to find their way…
Hibernation and Aestivation When conditions get tough, some animals pack up and head for better climates. Others dig in and wait for things to get better. To protect themselves, they may go into a…
Migration Some animals live their whole lives in one location. Others migrate, or move from place to place — sometimes over huge distances. Animals migrate for several reasons: to find food or…
How different species get along
Imagine life without your best friend. Who would you hang out with and talk to about your problems? Life would be so lonely! You rely on your friends for…
The human body is fantastically complex — and fantastically capable. It is dependent on smaller, simpler units that each serve specific purposes. From the simplest to the most complex, they are:…
