Explore the Student Exploration: Carbon Cycle Vocabulary with the 2018 Gizmo Warm-up and Activity A: Carbon Pathways. Learn about the atmosphere, biosphere, geosphere, and hydrosphere while tracing the carbon atom’s journey. Discover the impact of burning fossil fuels and human activities on atmospheric CO2 levels. Use the Gizmo to predict changes in carbon dioxide amounts and understand the role of plants in regulating Earth’s carbon balance. Track carbon paths from volcanoes to oceans …