Step-by-step instructions and photographs tell how to build a tornado in a bottle and explain the science behind the project.

Presents 39 experiments with plants, incl. Why Plants Have Roots, How a Bean Grows, and How to Graft a Plant.

This book contains kid-tested cool projects about dry ice, carbon dioxide gas using chemistry and will inspire young science buffs to experiment with their own ideas. Kids will learn how to Observe, Hypothesize, Test, and draw a Conclusion by using The Scientific Method. Included with the experiments are detailed step-by-step instructions with original photography, material lists, an explanation of the science behind the fun, real-world applications...

Over 75 safe, inexpensive science experiments with mixtures that illustrate changes in form and chemi- cal composition.

Includes activities designed to explore the broad spectrum of geologic phenomena such as plate tectonics, continental drift, mountain and valley formation, and erosion.

Presents 50 hands-on activities to introduce the science of geology and explain the formation and history of the earth.

A collection of biological science projects which demonstrate concepts and aspects of photosynthesis, genetics, plant and animal development, cell structure, and biochemistry.

Provides an overview of trees, their component parts, how they grow, varieties of trees, and how we use trees and their products. Includes related experiments and projects.