• Research Pleasers by Susan S. Petreshene (Bowker, 1992). These challenges will send kids running to the library and other research resources.
• Pyramids to Pueblos: 15 Pop-Up Historic Models by Helen H. Moore and Carmen R. Sorvillo (Scholastic Professional Books, 1995). Hands-on research projects through history.
• Scholastic Environmental Atlas of the United States by Mark Mattson (Scholastic Reference, 1993). A complete and informative look at geography through an environmental lens; ties in with "Meet a Mentor" in this theme unit.
• The Cat's Elbow and Other Secret Languages by Alvin Schwartz (Farrar, 1982). Learn how to speak Pig Latin, Iggity, and other coded languages.
• Encyclopedia Brown, Boy Detective by Donald J. Sobol (Nelson, 1963). Kids can put their research skills to work to help this young sleuth.
• Children's Multimedia Encyclopedia. Includes photos, video clips, and narrated text. For Windows and Macintosh, $69.95. Reed Interactive, (800) 308-6353.
• Random House Kid's Encyclopedia. Contains 2,000 Arcticles plus all the multimedia bells and whistles. For Windows, $69. Knowledge Adventure, (800) 542-4240.
• Webster's InteractiveEncyclopedia. Many thousands of short, illustrated and multimedia-enriched Arcticles. For Windows, $59.95. Cambrix Publishing, (818) 992-8484.
• Kids Explore America's National Parks. A great tool for the all-in-one research project. Learning Matters, Inc., (800) 540-9487.
• Where in the World: Kids Explore Series. A round-up of geography, culture, and history around the world. Learning Matters, Inc., (800) 540-9487.