Light Frequency and Energy Crossword Puzzle

QUESTIONS LIST:

• spectrum : in physics, the intensity of light as it varies with wavelengths
• photon : smallest unit of light energy
• orbit : a regular path that an electron takes around
• electron : a small particle with a negative charge that is found in all atoms
• red : has the lowest energy among visible light
• violet : has the highest energy among the visible light
• frequency : the number of occurrences per second
• atom : the basic unit of an element