Describes the functioning of the heart and circulatory system, presenting numerous related projects, and including information on science scholarships, grants, and awards.

Ideas and instructions for a variety of science projects that examine the characteristics of the space environment and consider forces such as gravity, magnetism, and buoyancy.

Instructions for a variety of projects and experiments demonstrating basic concepts of energy, work, and power, including thermal, electrical, and solar energy, energy of motion and position, and energy conservation.

Suggests topics and tips on preparing a project or original research in pure mathematics for a science fair. Discusses such areas as probability, geometry, topology, number theory, and sequences.

Suggests experiments that can demonstrate basic principles of chemistry using household items.

A collection of activities and experiments involving plants, exploring such areas as photosynthesis, plant structures, and growth.

Provides instructions for experiments demonstrating medical principles and explains how similar investigations have helped find cures or treatments for serious illnesses.

Gives instructions for and explains the principles behind a variety of simple physics experiments.