Curated OER
Settling Rates of Different Size Particles
Young scholars discover how and why the settling rate of particles differs with the size of the particles. Using different soil samples, they calculate the amount of time it takes for a sample to settle in water for up to forty minutes....
American Geosciences Institute
American Geosciences Institute: Soils
Seven hands-on lessons module allows learners to learn about soils. These inquiry-based investigations explore the kinds and arrangements of materials in soils, the amount of water that flows through soil, and how soil is eroded.
E-learning for Kids
E Learning for Kids: Science: Italy: How Can We Separate Solid Mixtures?
Help Rozalia clean her Pizzeria kitchen by using different methods to sort out mixtures.