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

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

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

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? Find the answers by doing the fun and simple experiments in this book. Many ideas for science fair projects are also included.

What is the best way to clean oil off feathers? How does soil erosion affect plant growth and food supply? Can the force in wind be used to generate electricity? The answers can be found by doing the fun and simple experiments in this book. Young scientists will explore the environment—the air, water, soil, pollution, and energy resources. For students interested in competing in science fairs, the book contains lots of great suggestions and ideas for further experiments.

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? Find the answers by doing the fun and simple experiments in this book. Many ideas for science fair projects are also included.

A collection of science experiments about cells and microbes with emphasis on using the scientific method.