How do cool temperatures affect the activity of a fish? Do earthworms prefer to live in light or darkness? Do weeds interfere with the growth of other plants? Readers will find the answers by doing the fun and simple experiments in this book. Many ideas for science fair projects are also included.

"Explains how to use the scientific method to conduct several science experiments about ecosystems. Includes ideas for science fair projects"--Provided by publisher.

Readers are offered step-by-step experiments in ecology that are sure to place high in any science fair. More important, however, the experiments provided show young people the richness of the ecology surrounding them every day, including the habitats of flora and the ecosystem of a pond. After performing these fun, hands-on activities and learning how these systems in nature work and depend on one other, readers will better appreciate the natural world around them.

How do cool temperatures affect the activity of a fish? Do earthworms prefer to live in light or darkness? Do weeds interfere with the growth of other plants? Readers will find the answers by doing the fun and simple experiments in this book. Many ideas for science fair projects are also included.

Incorporates the results of the program on ecosystem experiments conducted by the Scientific Committee of Problems of the Environment. Features research papers submitted at Mitwitz, Germany and Washington, D.C. The objective of this compilation of papers is to explore the potential of ecosystem experimentation as a tool for understanding and predicting changes in the biosphere. Areas investigated include deforestation, desertification, El Nino phenomenon, acid rain, watersheds, wetlands, aquatic and climatic changes.

"Explains how to use the scientific method to conduct several science experiments about ecosystems. Includes ideas for science fair projects"--Provided by publisher

A fabulous collection of science projects, explorations,techniques, and ideas! Looking to wow the judges at the science fair this year? Everyone'sfavorite science teacher is here to help. Janice VanCleave's A+Science Fair Projects has everything you need to put together awinning entry, with detailed advice on properly planning yourproject, from choosing a topic and collecting your facts todesigning experiments and presenting your findings. Featuring all-new experiments as well as time-tested projectscollected from Janice VanCleave's A+ series, this easy-to-followguide gives you an informative introduction to the science fairprocess. You get thirty-five complete starter projects on varioustopics in astronomy, biology, chemistry, earth science, andphysics, including explorations of: * The angular distance between celestial bodies * The breathing rate of goldfish * Interactions in an ecosystem * Nutrient differences in soils * Heat transfer in the atmosphere * Magnetism from electricity * And much more! You'll also find lots of helpful tips on how to develop your ownideas into unique projects. Janice VanCleave's A+ Science FairProjects is the ideal guide for any middle or high school studentwho wants to develop a stellar science fair entry.