Step 2: Teach Lesson
Review with the student the concept that the earth and the moon are spherical. Remind them that the light that warms the earth and
gives us daylight comes from the sun.
Tell the student, When seen at night, the moon seems to shine brightly in the sky. What we actually see is the reflection of
the sun's light on the moon. The moon gets its light from the sun, just as we do on Earth.
Pass out the materials to the student. Discuss the importance of "models" and what they are. (A model helps us explain or show what
happens with larger or smaller objects.)
Tell the student that today will be using the orange as a model of the moon to explain where the moon gets its light. The flashlight will
be a model of the sun.
Tell the student that each step of the investigation will allow them to make observations to find answers. They will need to write their
observations in their journals.
The student will cover their orange or ball with foil. They can make it bumpy and with craters to look like the surface of the moon.
Have them place it in the middle of a desk.
Turn off lights. (The room must be completely dark, without any reflected light.) Discuss any observations they make. Does the moon
shine? Why or why not? Where is the "moonlight" everyone talks about? Why does it stay dark?
Turn on lights and have the student record their observations. What are their conclusions so far? Can we state that the moon does
not make its own light? Has our investigation answered our original question yet?
Now turn the lights off once again, and have the student turn on their flashlight and shine it on the moon. Remind them the flashlight
represents a model of the sun shining. The student should discuss what they observe. Does their moon look bright now? Does the
sun light the moon? How does this take place?