On File TM is our award-winning collection of visual reference materials. Each On File TM depicts complex subjects in a way that both engages and informs students and researchers. These flexible resources fit into every curriculum. -- Instructors can use the pages for handouts, overheads, posters, and testing. -- Students can use them as quick sources of information, to reference curriculum topics, or to supplement their essays and reports. -- On Files TM are available in either binder or electronic format. -- All of the maps, charts, diagrams, and illustrations are designed in clean black-and-white graphics and are printed on sturdy pages. -- Pages are housed in durable three-ring binders. -- Replacement pages are available if they are lost or stolen. Sparks Curiosity Through Creative Learning Filled with more than seventy completely original, inexpensive science experiments and classroom activities, Nature Projects On File TM actually gets students out into the environment -- digging soil, tracking animal life, measuring rainwater, and dating trees. This exciting resource lets kids explore the natural world from the ground up, teaching scientific concepts along the way. Partial Table of Contents: Earth Projects Making Mountains Measuring Earthquakes Fossil Formation What Makes Up Soil? Microscopic Life in Soil Weather Projects Greenhouse Effect Wet Air Wind Station Rain Quality Cloud Cover Animal Projects Wildlife Detective How Do Animals Stay Upright? Can Honeybees See Colors? Seeing Underwater Life Plant Projects Seeds Dispersed by Humans Fungal Foray Competing Plants How Old Is That Tree? How Do StomataWork? Ecology Projects Making a Food Chain Mobile Pond Microhabitats Population Fluctuations Pollution Projects Cigarette Smoke Dust in the Air Leaf Fungi and Air Pollution Corrosion by Acid Rain Water Fit to Drink How Clean Is Your Water? Cleaning Oily Water Energy Projects Energy Traps Wave Power Releasing Stored Energy Keeping Warm Recycling Paper Environmental Quality Projects Your Neighborhood: An Environmental Profile What's in Your Garbage? Your Home: An Environmental Profile Identification Charts Animal Identification Chart Pond Life Identification Chart Cloud Identification Chart Mushroom and Toadstool Identification Chart.