SNC2D – Bill Nye: Light and Colour
Answer the following questions while watching the video.
1. What is white light?
2. What happens when white light shines through a prism?
3. Fill in the missing colours of the “spectrum of colours” or pure colours:
Red, _________________, yellow, __________________, blue, indigo (dark blue) and
____________________.
4. What is happening to make an apple green?
5. Where does white light come from? _______________________
6. Quote: “We don’t see “things”, we see light ____________________________________
______________________”.
7. Consider the Following: The colour black is actually ____________________ all of the
colours of the spectrum and turning the light into ______________________
8. What kind of gas emits red light when electricity flows through it?
__________________________
9. What are the three primary colours? _____________ , _____________ and
___________________ .
10. How do bubbles emit light?
11. Why is the sky blue?
12. Why is water blue?
Quiz: Try the following quiz that is based on information presented in the video.
1. White light has no color T / F
2. A prism is used to put all colours of light back together
T/F
3. Each color of the rainbow can be broken up into other colors using a prism T / F
4. An orange looks orange because the chemicals in its skin absorb orange light
5. Much of the light that a black cloth absorbs is changed to heat.
6. The light from a laser must be reflected before we can see it.
T/F
T/F
T/F
7. Different colours of light from the sun have different wavelengths.
T/F
8. Which of these statements is true regarding what we see? When we see things, what
we are really seeing is...
a. The light being absorbed by things
b. The light being refracted by things
c. The light being reflected by things
d. None of these
9. Which of the following is NOT a primary colour of light?
a. Red
b. Yellow
c. Green
d. Blue
10.Which of the following statements describes why the sky is blue: The sky is blue...
a. Because blue light is scattered more by air molecules than red light
b. Because blue light can shine through air molecules more easily than red light
c. Because blue light is absorbed by air molecules more than red light
d. For none of these reasons
Answers for Light & Colour Video
1. What is white light? A mixture of all of the colours of the rainbow
2. What happens when white light shines through a prism? It breaks up into all of the
colours of the rainbow.
3. Fill in the missing colours of the “spectrum of colours” or pure colours:
Red, orange, yellow, green, blue, indigo (dark blue) and violet
4. What is happening to make an apple green? It is reflecting green and absorbing all of
the other colours on the spectrum
5. Where does white light come from? The Sun
6. Quote: “We don’t see “things”, we see light bouncing off of things
7. Consider the Following: The colour black is actually absorbing all of the colours of the
spectrum and turning the light into heat
8. What kind of gas emits red light when electricity flows through it? Neon Gas
9. What are the three primary colours? Red, Blue and Green
10.How do bubbles emit light? Bubbles emit colour because of the light waves running into
each other.
11.Why is the sky blue? Air molecules in the sky scatter the sunlight – Blue light gets
scattered more than red so blue is what we see
12.Why is water blue? On a sunny day, light from the sky reflects off the water...since the
sky is blue, the water is blue.
Answers to Quiz:
1. White light has no color T / F
2. A prism is used to put all colours of light back together
T/F
3. Each color of the rainbow can be broken up into other colors using a prism T / F
4. An orange looks orange because the chemicals in its skin absorb orange light
5. Much of the light that a black cloth absorbs is changed to heat.
6. The light from a laser must be reflected before we can see it.
T/F
T/F
T/F
7. Different colours of light from the sun have different wavelengths.
T/F
8. Which of these statements is true regarding what we see? When we see things, what
we are really seeing is...
a. The light being absorbed by things
b. The light being refracted by things
c. The light being reflected by things
d. None of these
9. Which of the following is NOT a primary colour of light?
a. Red
b. Yellow
c. Green
d. Blue
10.Which of the following statements describes why the sky is blue: The sky is blue...
a. Because blue light is scattered more by air molecules than red light
b. Because blue light can shine through air molecules more easily than red light
c. Because blue light is absorbed by air molecules more than red light
d. For none of these reasons