Here are six titles that inform kids (and remind their parents) about the need to use our resources wisely. The Treehouse Team Saves The Forest (grades 2-4) When part of their beloved forest faces clearing because of the need to build another power plant, the "Treehouse Team," a concerned group of young animals, looks for ways to save electricity. Sure enough, they find so many different ways to save energy that the forest is spared, and everyone in town notices that their electric bills are lower, too. This engaging title builds home energy efficiency awareness in young children and challenges them with analytical questions and simple math problems.   Student booklet: 16 pp., full color. Price List A Poster: 16 1/4" by 21 3/4", full color. Teacher's guide: 4 pp.       Using Our Resources Wisely (grades 1-3) Simple vocabulary and abundant photographs introduce students to the wise use of renewable and nonrenewable resources. Making new paper out of used paper, kids learn how recycling helps conserve forests. Students learn that electricity cannot be recycled; to save it, they must look for more efficient ways of using it.   Student booklet: 16 pp., full color. Price List A Teacher's guide: 8 pp.           Efficiency of Electric Appliances (grades 6-9, Physical Science) Students become budget-conscious consumers when they study the economic impact of replacing incandescent lamps with fluorescent ones. They also learn to interpret the Energy Guide labels on appliances.   Student booklet: 8 pp, full color. Price List B Teacher's guide: 4 pp.             Demand for Electricity (grades 6-9, Science) In this booklet, students learn the language of electricity, including "volts," "amps," and "watts" and learn how to search for these units in their own homes. Learning to read an electric meter leads to graphing energy consumption in the home over the course of a week. They also gain insight into the utility industry by reading how a utility meets the varying demand for electricity in the course of a summer day. Student booklet: 16 pp., full color. Price List A Teacher's guide: 8 pp.     Climate and Comfort (grades 8-10, Earth Science) Tomorrow's energy customers take a hard look at America's diverse climate, learn about "heating degree days," and discuss what factors to consider in determining how much to spend when insulating their homes. They also conduct a survey of their home's construction and learn how to apply caulking and weather stripping. Student booklet: 16 pp., full color. Price List A Teacher's guide: 8 pp.         Is Efficiency Our Best Energy Source? (grades 9-11, Science, Social Studies) In this provocative booklet, students examine the history of energy efficiency over the past 20 years as it relates to the home (refrigerators), transportation (automobiles) and industry (electric motors). The impact of energy efficiency on lifestyle and the environment is explored. Student booklet: 16 pp., full color. Price List A Teacher's guide: 12 pp.