Conditional Remix & Share Permitted
CC BY-NC-SA
In this activity you'll see how the sun's tilt on its axis changes the length of shadows. For example, why is your shadow longer in winter than in summer? It's easy to see the answer if you have a "sun" and an orbiting "earth" to demonstrate. Like many other ancient people, the ancient Chacoans used the annual changes in shadows to measure the passage of time and the change in seasons. You can too!
- Subject:
- Physical Science
- Physics
- Material Type:
- Activity/Lab
- Provider:
- Exploratorium
- Author:
- Linda Shore
- Date Added:
- 12/07/2004