Purpose– To observe the following phenomena about light:• light rays reflecting off a mirror and refracting

through lenses• diff. colored paper under diff. colored lights• the spectrograph created by different lights• the reflection of a laser• the combining of colored lights

Visible Light

• Draw the five light rays before and after reflecting, or going through, the following 4 objects one at a time.

• concave lens• convex lens• concave mirror• convex mirror

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Station A

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_________Label what you are using under the diagram_______

Draw the object

Color/show the color of six different colors of paper under a 3 different colored lights.

paper/light red yellow green

white

yellow

red

blue

black

green

Station B

Colored Paper Appearance Under a Red, Blue, and Green Light

• Draw a prediction FIRST how you think the mirrors need to be arranged to hit the bulls eye with the laser OFF.

• Draw the actual diagram how the mirrors were arranged in order to hit the bulls eye with the laser ON.

Prediction Laser OFF Actual with Laser ON

Station C

Color the spectrographs of 5 different lights as seen through the spectrometers.

– blue– LED– fluorescent (hall way)– natural light (outside, but not directly at the sun)

Station D

R O Y G B I V

R O Y G B I V

R O Y G B I V

R O Y G B I V

R O Y G B I V

LED

Blue

Fluorescent(hall way)

Natural(outside)

• Place the blue light on top of the red and green.

• Set the lens in front of the lights

• Slowly move the lens forward or backwards until you see the three light colors overlap on the white paper

Station E

3 flashlights lens

draw the colors when the 3 lights combine