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| Colossal Collisions |
| Lift-Off Task: Asteroid Collisions |
| Task 1: An Ancient Collision |
| Task 2: Contact Forces |
| Task 3: Gravity — A Non-Contact Force |
| Traveling Through Space |
| Lift-Off Task: Our Solar System |
| Task 1: A Sun-Earth-Moon Model |
| Task 2: A Solar System Model |
| Task 3: Gravity in the Galaxies |
| Task 4: Invisible Forces |
| Unit 2 Pop-Out: How Power Influences Science |
| Adapt or Die? |
| Lift-Off Task: The Case of the Peppered Moths |
| Task 1: The Fossil Record and Geologic Time Scale |
| Task 2: Evidence of Change Over Time |
| Task 3: Natural Selection |
| Task 4: Human Intervention |
| Using Engineering and Technology to Sustain Our World |
| Lift-Off Task: Growing Human Impact |
| Task 1: Human Population and Resource Consumption |
| Task 2: Effects of Environmental Change on Biodiversity |
| Task 3: Waves and Energy |
| Task 4: Wave Interactions |
| Task 5: Using Waves to Communicate Information |