It's elemental!DIRECTIONS: First, read "Name That Element!" (p. 12). Then, solve the clues below to complete this crossword puzzle. To spell out the bonus words, unscramble Same as decrypt. See scramble. the letters in parentheses See parenthesis. parentheses - See left parenthesis, right parenthesis. . Across 1. The (-)------ is a gland found in the format. 2. Iodine dissolved in water: -(-)---- solution 3. The smallest unit of an element: --(-)- 4. A powerful germ killer: ----(-)-(-)--- 5. Black and white film is coated with a compound of iodine and (-)-----. 6. A particle containing two atoms: -(-)------ molecule Down 7. Potatoes contain long chains of sugar molecules called (-)-----. 8. Chemical messengers that regulate body functions, including energy use: -------(-) 9. Long-lasting -(-)----- lightbulbs are sometimes filled with iodine. 10. Hot, glowing wire in a lightbulb: -------(-) 11. Two or more elements chemically combine to form a --(-)----(-). 12. A row on the periodic table: --(-)--- Bonus: One of the first uses of the items in clue 9 was to light up a. ------ b. --------. 1. thyroid 2. Lugol's 3. atom 4. antiseptic 5. silver 6. diatomic di·a·tom·ic adj. Made up of two atoms. diatomic 1. containing two atoms. 2. dibasic. 7. starch 8. hormones 9. halogen halogen (hăl`əjĕn) [Gr.,=salt-bearing], any of the chemically active elements found in Group 17 of the periodic table; the name applies especially to fluorine (symbol F), chlorine (Cl), bromine (Br), and iodine (I). 10. filament filament, in astronomy: see chromosphere. 11. compound 12. period Bonus: a. sports b. stadiums |
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