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Physical Science Module Crossword Puzzle

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Physical Science Module

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                      4             5    
              12                     13   14
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6 water that has certain dissolved ions in it - predominantly calcium and magnesium ions
7 a molecule that has slight positive and negative charges due to an imbalance in the way electrons are shared
8 the use of electricity to break a mmolecule down into smaller units
9 the phenomenon that occurs when idividual molecules are so strongly attracted to each other that they tend to stay together, even when exposed to tension
10 carbon monoxide (CO) is a __________ gas associated with burning things under conditions of low oxygen
12 a category of substances that have electrical charges in them. Table salt is in this category
15 octane is an important component of __________
1 Latin name for iron
2 H2O is the chemical formula for what?
3 how many atoms are in one molecule of carbon dioxide (CO2)?
4 how many atoms are in one molecule of carbon monoxide (CO)?
5 carbon dioxide (CO2) is one of the gases that we ______ when we breathe
6 what keeps water molecules close together, keeping water a liquid at room temperature?
11 a substance that is dissolved in a solvent
13 a substance that does not dissolve in water is most likely _____________
14 a liquid substance capable of dissolving other substances
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