Briefly describes past and present uses of solar energy, especially for heating and electricity. Includes instructions for three simple experiments and a glossary.
Text and color photos describe the Gulf of Mexico, including its geology, its properties as a body of water, its wildlife, its weather, the human life surrounding it, and factors affecting it such as pollution.
Provides photographs and information about the Pacific Ocean, discussing its location and size, its geographical features, the effects of its waves and tides, some of the plants and animals that live in and around its waters, and the dangers of pollution.
