Date:Name: Class:

Chapter 9 / Crossword Puzzle / BLM 9-18
Vocabulary check
Goal  The crossword puzzle on this page will help reinforce your knowledge of the terminology of light and waves.

What to Do

  • Fill in the crossword puzzle using the clues given.

I / N / F / R / A / R / E / D
W / R / A
A / M / P / L / I / T / U / D / E / D
C / V / L / Q / I
O / E / S / P / E / C / T / R / U / M / A
N / L / R / E / T
E / L / E / C / T / R / O / M / A / G / N / E / T / I / C
S / N / V / C / O
G / O / I / Y / N
T / Z / O
H / O / L / I / G / H / T / S
N / E
C / O / H / E / R / E / N / T / G / X
E / A / L / A / S / E / R
R / O / D / S / M / A
T / A / M / Y
Z / R / A / D / I / O / W / A / V / E / S

Date:Name: Class:

Chapter 9 / Crossword Puzzle Cont’d / BLM 9-18
Across / Down
1. Type of radiation that feels hot in your hand / 2. How many waves pass in a certain amount of time
5. The distance from rest position to the top of a crest / 3. Light’s type of energy transfer (spreading out in all directions)
8. The colours of the rainbow are part of the electromagnetic ____ / 4. The distance from crest to crest of a wave
9. Light is a form of ____ radiation / 6. The type of radiation that causes sunburns
11. Our eyes see visible ____ / 7. Colour sensitive cells on the retina
12. Type of light emitted by a laser / 10. Chemical in Earth’s atmosphere that protects us from ultraviolet radiation
17. Device for Light Amplification by Stimulated Emission of Radiation / 13. A cycle per second (unit of frequency)
18. Cells in the eye that can detect faint light, but do not sense colour / 14. Used to catch speeders or track planes
19. Low frequency waves, used in television / 15. Type of radiation given off in nuclear reactions
16. Type of radiation used to see bones

For help, use chapter 9 of your SciencePower8TM textbook.