Shirley Willis

Questions and answers explain water, the water cycle, and such aspects of weather as rain, clouds, ice, and snow. Includes experiments and activities.

Explains in simple words various aspects of the moon, such as its rotation, orbit, composition, age, temperature, and location, as well as lunar eclipses, the moon's pull on the ocean, lunar landings, and surface features.

Introduces the concept of weight, discussing units of weight, methods of measuring weight, and the importance of weight measurement for a variety of uses.

Questions and answers explain water, the water cycle, and such aspects of weather as rain, clouds, ice, and snow. Includes experiments and activities.