Across
- 1. When light reaches an object it is scattered (or reflected), transmitted, absorbed, or some ___________ of these.
- 2. Filters color light by absorbing certain colors and ___________ the rest.
- 5. Light can make things happen when it is _______.
- 7. When different colored lights are ______, they appear as a new color, brighter than the original colors.
- 8. An object can be seen if four conditions are met: there needs to be an object, an _____, a source of light, and a direct path between the object and the eye.
- 12. ______ occurs when light bounces off an object only in a certain direction. This occurs when the surface of the object is smooth and polished.
- 13. Different wavelengths of ______ light appear to us as different colors.
- 14. A ________ is seen by detecting that less light reaches the eyes from it than from the area surrounding it.
- 16. ______ occurs when light bounces off an object in all directions. This occurs when the surface of the object is rough and unpolished.
- 17. Light continues traveling until it reaches an ________.
- 18. Light travels in _______ lines.
Down
- 1. ________ objects scatter only certain colors of light and absorb the rest.
- 3. Some objects are _________ and let light pass through them (in an orderly fashion).
- 4. A reflection of one object is seen in a second object only if the second object ________ light, not if it scatters it.
- 6. More light enters the eye from areas of greater perceived brightness (The _________ an object appears, the more light that reaches the eye, or detector).
- 9. There are many different _______ of light. Most of these cannot be seen.
- 10. A shadow is formed behind an object that ______ the path of light.
- 11. ______ must enter the eye or sensor to be seen or detected.
- 15. _____ light is a mixture of all colors of light – it is the brightest color. Black is the color associated with the absence of light.