Wong, Ovid K

Presents activities to explore and emphasize ecology and to demonstrate practical ways of conserving the environment.

Introduces the working of the human body, system by system, with related activities and thought questions.

A collection of science experiments exploring common phenomena relating to matter, energy, and their properties.

Discusses the characteristics which make human beings different from other species and describes how scientists have learned about prehistoric people and their evolution.

Provides instructions for a variety of simple experiments demonstrating the principles and properties of electricity and magnetism.

Describes the physical characteristics, habitat, behavior, and endangered situation of China's national animal treasure.

Instructions for a variety of simple experiments examining the reflex, instinctive, and conditioned behavior of such animals as mealworms, fruit flies, and goldfish.