1. by Mr. Reece

2.  Objects that can make their own light are ________________. luminous

3.  Objects that cannot make their own light are ________________. nonluminous

4.  Light travels in straight lines called ________________. rays

5.  A _____________ is formed when an opaque object blocks light. shadow

6.  An object that is______________ allows some but not all light to pass through it. translucent

7.  ________________ objects allow all the light to pass through. Transparent

8.  The colors we see are the colors that are ____________ by the objects. reflected

9.  The bending of light as it passes from one substance to another is called______________ refraction

10.  The bouncing of light off an object is called______________ reflection

11.  A transparent material used bend light is a __________ lens

12.  A _________________ bends light outward and is used to correct nearsightedness. concave lens

13.  A _________________ bends light inward and is used to correct farsightedness. convex lens

14.  A _________________ bends light inward and is used to correct farsightedness. convex lens

15.  A shadow is shorter in the morning than it is at noon. False

16.  All the colors that make up light are called the visible vortex. False

17.  Light and heat are related to each other. True

18.  White light is made of many colors. True

19.  ___ 1. the opening in the iris that allows light to enter the inside of the eye.  ___ 2. the part of the eye that refracts light to focus it  ___ 3. the transparent, curved covering in the front of the eye A. lens B. retina C. pupil D. cornea E. optic nerve C A D

20.  ___ 1. the back part of the eye where the image forms  ___ 2. the part of the eye that sends messages to the brain A. lens B. retina C. pupil D. cornea E. optic nerve B E

21. The order that light enters the eye… 1. Cornea 2. Pupil 3. Lens 4. Retina