Explains methods and techniques used in lab experiments, covering such topics as heating, measuring, and collecting substances, doing dissections, using lab equipment, and gathering data. Includes instructions for actual experiments.
Explains how things are measured, with directions for making counting sticks, a growth chart, a sand-clock timer, water-glass chimes, and other projects.
Offers a visual guide, with brief explanatory text, to comparative sizes, heights, weights, and numbers in such areas as capacity, population, growth, weather, disasters, speed, and others.
