1. Materials and Light Getting the Idea S4P1.a

2. Light Light is a type of energy that you can see. It moves from place to place. The amount of light that passes through an object determines how well you can see through it.

3. Light Light travels in a straight line. You can draw light as an arrow to show its direction. When it strikes an object, it may change direction.

4. Reflect, transmit, and absorb

5. Reflect Light may reflect, or bounce off an object

6. Transmit An object may transmit some light, or let it pass through.

7. Absorb An object may also absorb, or take in, light.

8. Different Types of Materials A TRANSPARENT object is something you can see through clearly. It lets almost all light pass through.

9. Different Types of Materials An OPAQUE object is something you cannot see through. It reflects most of the light that strikes it.

10. Different Types of Materials A TRANSLUCENT object is something you can see through, but not clearly.

11. Lesson Review 1. Which object below is translucent? a. b. c. d.

12. Lesson Review 2. Most of the light that strikes a transparent material is a. Absorbed b. Attracted c. Reflected d. Transmitted

13. Lesson Review 3. Which object below is opaque? a. Air b. Apple c. Paper d. Water