LS2.A: Interdependent Relationships in Ecosystems:.(9-12) The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.(6-8) Plants, algae (including phytoplankton), and many microorganisms use the energy from light to make sugars (food) from carbon dioxide from the atmosphere and water through the process of photosynthesis, which also releases oxygen.LS1.C: Organization for Matter and Energy Flow in Organisms.The seasons are a result of that tilt and are caused by the differential intensity of sunlight on different areas of Earth across the year. (6-8) Earth’s spin axis is fixed in direction over the short-term but tilted relative to its orbit around the sun.These include day and night daily changes in the length and direction of shadows and different positions of the sun, moon, and stars at different times of the day, month, and year. (5) The orbits of Earth around the sun and of the moon around the Earth, together with the rotation of Earth about an axis between its North and South poles, cause observable patterns.

(6-8) Patterns of the apparent motion of the sun, the moon, and stars in the sky can be observed, described, predicted, and explained with models.Next Generation Science Standards Disciplinary Core Ideas for 3-Video Series

Animation of earth spinning on its axis