Light Questionnaire
QUESTION 1: What is it about light that makes it different colors (that is, what makes blue light blue and
red light red)?
QUESTION 2: Consider the following three examples of light: light from the sun, light from the lamps
overhead, light from your hand right now
2a. How do you think these examples of light are the same?
2b. How do you think these examples of light are different?
QUESTION 3: You may have heard of light that is "invisible." Examples of this are infrared light and
ultraviolet light. What about light makes it "invisible"? (Try to encourage an answer that is detailed and
more than 'because we can't see it')
QUESTION 4: Do you think infrared light is really light, even though you can't see it? Explain your
answer; if you think it is something other than light, what is it?
QUESTION 5: Stars are very far away and yet we can see them in the night sky. Describe how starlight
travels through space.
QUESTION 6: Which travels faster, a radio wave or a light wave? Explain how you know the answer to
this question.