US Geological Survey
The Water Cycle for Schools: Intermediate Ages
Water can travel from the highest mountain tops to the largest oceans. Using an interactive, young scientists trace the movement using an interactive online resource. They follow the water cycle by reading pop-up explanations on a...
Curated OER
Life Cycles
In this life cycles worksheet, students compare the life cycles of 2 different species and answer short answer questions about them. Students can choose the species to compare and then answer 6 questions.
Learning Games Lab
Fertilizing Chile
Fertilizer can mean the difference between a profit and a loss. Scholars use an online interactive to explore the effects of fertilizing in agriculture. Given information about the nitrogen levels in the soil, they decide the fertilizer...