- How does the angle at which the Sun's rays strike Earth's surface affect the amount of energy received by a given amount of surface area?
- If the car's speed increased as the angle of the Sun increased, do you think the Ferris wheel would go faster at noon than early in the morning? Support your answer by explaining your reasoning.
- How would you go about answering the question above? What measurements would you make?
- In what ways was the investigation you saw in the video a "fair test?" What conditions did they keep the same (constant)? What was the variable?
