4. The type of materials that do not allow light to pass through them are called A. Opaque B. Translucent 5. Which of the following is an example of a translucent material? A. clear plastic C. mirror B. hollow block D. stained glass 6. Which of the following materials can reflect light? A. clay C. rubber D. wood mirror C. Transparent D. none of the above 7. What is formed when an opaque object is placed under the slanting rays of the sun? A. light B. shadow C. smoke D. sound 8. Light travels faster in air than in water. This is A. True C. Maybe B. False D. Neither true nor false 9. Why is a clear glass window categorized as a transparent material? A. Because it allows all the light to pass through it. A. Absorption B. Reflection B. Because it allows some of the light to pass through it. C. Because it does not allow the light to pass through it. D. None of the above 10. A pencil appears bent when dipped in a glass of water because of C. Refraction D. Transmission​