Unpacked Content
Scientific and Engineering Practices
Developing and Using Models
Crosscutting Concepts
Cause and Effect
Knowledge
Students know:
- Light enters the eye, allowing objects to be seen.
- Light reflects off of objects, and then can travel and enter the eye.
- Objects can be seen only if light follows a path between a light source, the object, and the eye.
Skills
Students are able to:
- Construct a model to make sense of a phenomenon.
- Identify relevant components of the model including: light (including the light source), objects, the path that light follows, and the eye.
Understanding
Students understand that:
- An object can be seen when light reflected from its surface enters the eyes.
Vocabulary
- reflection
- opaque
- translucent
- transparent
- refraction
