The four cycles in Earth's biogeochemical system are covered in this worksheet. Science stars fill in the blanks or define vocabulary terms pertaining to the hydrologic, carbon, nitrogen, and phosphorous cycles. This resource provides a...

Learners research an assigned biogeochemical cycle. In this cycle activity, students need to determine that all cycles need energy to continue. The learners will look at a given cycle to describe it, research and draw an assigned cycle,...