Ready to test your knowledge of light wavelengths and spectra? You're in the right place. This puzzle is composed of words that will challenge your vocabulary and test your skills. See if you can use the clues and answers to find the order of colors in the rainbow from longest wavelengths to shortest. You can check the Rainbows and Spectra glossary page if you need help.
There are a few simple rules you have to follow to be successful and get the most points!
1. Roll your mouse over the columns of words. A clue will appear on the left side of the puzzle. Left click your mouse to get a cursor so you can type your word.
2. If you are in a space where you can either type a word across or down, you must type the "a" key to answer the across word or the "d" key to answer the down word.
3. If you want to check your answer after you have typed in your word, just click "check." The incorrect letters will appear in green.
4. You will receive 10 points for each correct letter. However, you will lose 15 points for each letter you cheat on! To continue to a new puzzle, you must have at least 40 points or have correctly answered all the clues.
5. If you get stuck on a word, you can always cheat (but you have to have enough points!).
6. If you can't remember what to do, we've included a handy dandy instructions box. It will always be there to guide you on your way to victory.
7. If you finish a puzzle and you still don't know where all the colors fit in, just hit the "new puzzle" button. It will keep generating new puzzles until you have exhausted all of our words. Then you can start again. The puzzles are never the same!
Hint: If you haven't read the lesson pages, you might have trouble finishing a puzzle.
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