Melvin Berger

Discusses how the various musical instruments produce sound and describes how records, tapes, and disks are made and how the playback equipment for them generates sound waves.

"Did you know that the blue whale, the world's largest animal, is as big as three school buses and weighs as much as twenty-seven elephants? Or that a sea wasp is so poisonous, its venom can kill up to sixty human adults? Can you believe that the silk moth caterpillar's appetite is so enormous that it can eat more that than 1,000 times its weight each day?"--Amazon.

Provides answers to such questions about the weather as "What makes the weather?", "Does air have weight?", "How big are hailstones?", and "What is El Nino?"

Explains what maps are and how to use them, discusses map symbols and their meanings, and includes maps of a house, community, city, state, country, and the world.

Questions and answers present information about spiders, arranged in the categories "Amazing Creatures, " "Web Spinners, " "Spiders that Hunt, " and "Living with Spiders."

Explains how electricity is produced and transmitted, how to create electricity using an electrical wire and a magnet, how generators supply electricity for cities, and how electricity works in homes.

A simple explanation of what sharks look like, how they hunt, what they eat, and how they are born.

A simple explanation of what bears look like, how they hunt, what they eat, how they sleep during the winter, and how their cubs are born and raised.