Week 6 Lenses and the Eye
Light radiates from a source in straight lines, or rays.
Light can be made to change direction with the aid of mirrors, lenses and prisms.
Define the meaning of the term "normal" in relation to reflection.
State the law of reflection.
Describe what is happening to the light transmitted from the straws beneath the water.
A ray of light is being refracted as it enters the air/plastic interface and again as it leaves the plastic/air interface.
Describe, using the ray diagram how light behaves when it travels from one medium to another. Explain why the straws appear bent beneath the water.
The Human Eye
Click on the image below to watch a video of a cow eye dissection. SQUEEMISH WARNING.
Cow Eye Dissection Worksheet
1. List three observations you made when you examined the surface of the eye:
2. Identify the following structures and describe their function:
3. Use the pictures below to name the parts of the eye: You may glue a copy of this image into your Interactive Science Notebook