Purpose: To give students a basic understanding of optics. Students will learn about the properties of concave and convex lenses as well as real and inverted images. Components: one flashlight two large concave lenses two large convex lenses one small convex lense one diffraction grating

Seventh Grade CA Physical Science Standards met:

• PHYSICAL PRINCIPLES 6a - Students know visible light is a small band within a very broad electromagnetic spectrum.
• PHYSICAL PRINCIPLES 6c - Students know light travels in straight lines if the medium it travels through does not change.
• PHYSICAL PRINCIPLES 6d - Students know how simple lenses are used in a magnifying glass, the eye, a camera, a telescope, and a microscope.