Explanation:

1.Use a pencil point to punch a hole into the two cardboards carefully.

2. hold the cards upriggt on a flat syrface so that the holes are lined up.

3. Place a flashlight directly behind the last card. Turn it on and aim the light to

4. Bend your body so that you are at eye level with the first card. Observe the the hole of the cardboard. hole of the first card.

Guide Questions:

Directions: Answer the following questions. Write your answers in your science notebook.

1. Can you see the flashlight's beam when the two holes are lined up?

2. What will happen if you move one of the cards? Will you still be able to see the light?

3. Draw/ illustrate how light travels.