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This wide range of topics (biology, chemistry, earth and space science, environmental science, health and medicine, history of science, life science, physics, science and society, science as inquiry, scientists, technology and wildlife) satisfies the demand for standards-based content and provides teachers and librarians with articles correlated to state and national curriculum standards. It is designed to meet student researchers’ needs, with full text for hundreds of science encyclopedias, reference books, periodicals, and other sources.
For over 50 years, The Merck Veterinary Manual has been a trusted source of animal health information for students and practicing veterinarians. It contains authoritative guidelines for the diagnosis, treatment, and prevention of animal disorders and diseases. More than 1100 full-color images, audio examples, videos, and links to related information enhance the expansive coverage of companion, production, exotic, and laboratory animals.
You see an unknown tree. Or perhaps have found part of a tree, and you want to know from what kind of tree it came. Often, you can identify an unknown tree by just one part, such as a leaf or a fruit. This web site will lead you through qualities of leaves and fruits from common trees. You will work your way through these choices by selecting images that more closely resemble your sample. To be certain of your identification of an unknown tree, however, you must use as much of the tree as possible.
This program includes 30 species and subspecies of snakes that are found in Ohio. Of these 30 kinds of snakes only three are poisonous and dangerous to people and domestic animals. We also have included one species of poisonous snake that does NOT live in Ohio, the Water Moccasin. We added the Water Moccasin to our list for this program because a great many people think that it does live in Ohio.
Identifying flint artifacts