Starting With Soil
Starting with Soil is a free app from the Whole Kids Foundation that teaches the importance of healthy soil and lets kids discover the harmonious roles that plants, animals, and people play in keeping it healthy. This high-quality, interactive app lets kids explore the life in soil through lots of interactive experiences. They can use a compost wheel to learn about which things can be composted; learn about pollinators and their role in the food we eat; explore fungi, bacteria, protozoa, algae, and nemotodes with a built-in microscope; and learn how long it takes to make an inch of healthy soil with an interactive timeline. Kids can also plant digital seeds, make it rain, and build their own digital compost pile.
description from: http://ilearntechnology.com/