Multiple Choice: Read each item carefully and choose the letter of the best answer. a 8. You are walking one afternoon to go to your uncle's house. You are aware that exposure to sun light can lead to certain diseases. What material can you use in order to block the sun? (A) Umbrella C. Books B. Bag D. Rain coat D 9. The following are examples of materials that transmit light. Which one is not useful? A. Picture frames C. Glass doors covered with designed plastic B Windows of houses D. Display cabinet door 10. Why do most people in tropical countries use white paint for their homes? A.. To shade their house C. To makes feel cool and comfortable B. To absorb heat D. To decrease the temperature 11. Why light absorbed by the plants useful? A It makes the plants green B. Light is reflected and increasing its temperature C. Over expose of plant to light makes plants die. D. It makes the environment cool. 12. Why do people enjoy the shade of the tree during summer? A. It reflects light C. It blocks light B. It absorbs light D. It release light 13. A circuit has power supply, load, switch and a A. Battery C. Wires B. Bulb D. Motor
