cot science 5 COVERS THE TOPIC about light

science cot 5

1. SCIENCE 5

2. Direction: Determine whether the following materials are conductors or insulators of electricity/heat. conductors

3. insulators

4. insulators

5. conductors

6. insulators

7. conductors

8. OBJECTIVES: 1 . Identify the materials that can block, absorb or transmit light; 2. Conduct simple experiment. 3. Enumerate ways on taking care of one’s eyes.

9. -

10. Materials Needed: 1. flashlight 5. black shirt 2. book 6. Dark bag 3. cellophane 7. eyeglasses 4. mirror

11. OBSERVATION CHART MATERIALS Block the Light Absorb the Light Transmit the Light book       cellophane       mirror       black shirt       dark bag       eyeglasses       Experiment Procedures: 1. Turn on the flashlight. Test if the following materials block, absorb, or transmit light. 2. Record your answer on the chart. Put check (√) on the proper column.

12. Question: 1. What is optics? 2. What materials blocked, absorbed, or transmitted the light? 3. Why was the light blocked, absorbed, or transmitted by these materials?

13. Let us identify whether the following materials block, absorb or transmit light.

14. Transmit Block Absorb Block Absorb Transmit

15. Direction: Match Column A to Column B that corresponds to its meaning by drawing a line .

16. Direction: Read the following situation. Choose the letter of the correct answer. 1. When light bounces off a smooth surface, the process that occurs is ______________________. A. reflection B. translucent C. refraction D. transmission

17. 2. What happen to the clear object when it is hit by the light? A. The light is blocked B. The light is reflected C. The light is absorbed D. The light is transmitted

18. 3. Which among the following materials absorb light? A. Clear plastic C. Sunglasses B. Black T-shirt D. Water

19. 4. An example of material that blocks completely the passage of light. A. Cardboard B. Plywood C. Rock D. All of the above

20. 5. Light is blocked in an ___________materials that does not allow light to pass through them, creating a shadow of the material. A. Opaque B. Optic C. Translucent D. Transparent

21. Direction: Read the following situation. Choose the letter of the correct answer. 1. When light bounces off a smooth surface, the process that occurs is ______________________. A. reflection B. translucent C. refraction D. transmission

22. 2. What happen to the clear object when it is hit by the light? A. The light is blocked B. The light is reflected C. The light is absorbed D. The light is transmitted

23. 3. Which among the following materials absorb light? A. Clear plastic C. Sunglasses B. Black T-shirt D. Water

24. 4. An example of material that blocks completely the passage of light. A. Cardboard B. Plywood C. Rock D. All of the above

25. 5. Light is blocked in an ___________materials that does not allow light to pass through them, creating a shadow of the material. A. Opaque B. Optic C. Translucent D. Transparent