1. Light Energy
Light energy is the vibration of electrically charged particles
These particles are called photons and have no mass
Light vibrations cause energy to be transmitted in a wave but unlike sound it does not cause other particles to vibrate

2. Possibilities of Light
Light rays move away from their source in straight lines
When they hit something they do one of three things
Reflected
(bounced off)
Refracted
(bent)
Absorbed
(stopped)
VIDEO

3. TRY IT! 4. What happened? 5. What causes this? Part I
Part II
Prop up the card with the arrow on it.
Place a glass of water a little to one side of the card and a few inches in front of it.
Now stoop down until your eyes are level with arrow.
Slide the glass between the card and your eyes. Try sliding it back and forth a few times.
4. What happened?
5. What causes this?
Part I
Fill beaker half full of water.
Put a pencil in the glass.
Look at the pencil through the side of the glass.
1. How does the pencil look different than it did before you put it in the water?
2. This is an example of ______________.
3. Sketch it!