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This book takes a look at the microscopic organisms, including mold and bacteria, discusses the causes of allergies, and looks at the invention of the microscope.

Learn about the tools used to help us see things close up.

"An illustrated picture book of early scientists Antonie van Leeuwenhoek and Galileo Galilei, who used similar observation tools but saw the world very differently, their discoveries leading to innovations in both microscopes and telescopes." -- Provided by publisher.

"Of the 7,000 estimated non-native species present in North America, approximately 1,000 are invasive. Clearly, invasive species are in the minority, but their small numbers don't keep them from causing billions of dollars in economic and ecological harm each year. Policymakers and ecologists continue to try to figure out which species might be harmful, which invasive species are doing the most damage, and which of these might respond best to eradication...

Greg gets a microscope and has a fascinating time looking at sugar and salt crystals, flower, hair, and much else.

An introduction to microscopes and magnification with experiments using such easily obtained materials as comic books, leaves, hair, and potatoes.

Presents basic techniques for using a microscope to observe and investigate a variety of materials that might be found around the house. Also includes experiments and ideas for science fair projects.

Through the lenses of powerful microscopes, Dennis Kunkel has examined objects most people have never even thought about: a mosquito"s foot, a crystal of sugar, a grain of pollen, the delicate hairs on a blade of grass. Hidden Worlds takes you behind the scenes of Dennis"s work and explains how he captures his remarkable images of microscopic life and objects.

Discusses the history, development, and future of the microscope.