Across
- 3. What helps us to see things.
- 6. Thick, blocks all light; used for boxes.
- 7. Appears when something blocks the light.
- 9. A shiny, solid material that light can’t pass through.
- 11. You can see a little bit through this, but it’s blurry.
- 12. You can’t see through this at all.
- 13. A type of glass you can’t see clearly through.
Down
- 1. Lets light into a room.
- 2. You can see yourself in this.
- 4. Thin paper that lets a little light through.
- 5. Used for bottles or wrappers; can be clear or cloudy.
- 8. Used in windows so you can see outside.
- 10. You can see clearly through this kind of material.