Students examine the importance of carbon and learn about two Earth systems, the solubility pump and the biological pump, which cycle carbon from the atmosphere into the oceans and back again. In this interactive lesson, students watch short descriptive videos about this topic. They read and highlight video transcripts and complete short writing assignments that reflect what they've learned. As a final assignment, students recreate the steps involved in both pumps and then write a clear, descriptive paragraph or two describing one of the pumps.