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Halloween (2009) | 506 Visits
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Dry Ice Labs (Chemistry) | 6270 Visits
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Balloon & Flask Lab (Chemistry)| In our study of chemistry, we investigate pressure systems -- both high pressure and low pressure. Can you figure out how to inflate a balloon INSIDE a flask without blowing on it? |
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Silly Putty Lab (Chemistry) | During our fall chemistry unit students are introduced to four types of chemical reactions. Elmer's white school glue is a polymer with long chains of atoms bonded together. When Borax is added to elmer's glue, 'cross links' begin to form between these chains. The more borax that is added, the more cross-links are formed and the 'stiffer' the silly putty becomes. Adding just a little borax produces what might be called 'slime.' Adding more borax (1 tablespoon added to each 500 ml of water) produces the 'silly putty' you will see in the photo gallery below. Once students created their own supply of 'silly putty,' it was time to begin running tests to determine the characteristics of their new substance. Students were familiar with the properties of Elmer's glue, but what about this new material? Had they created a solid or a liquid? Could it bounce? Could it be poured? Did it feel hot (exothermic) or cold (endothermic) in their hands? What would happen if they left it on the table for 3 minutes? Could it be stretched? Would it 'break?' Could it be used to 'lift' a pencil diagram off notebook paper? |
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Archive -- Keys Trip 2007 (Marine Biology)| From 1991 to 2009, Mr. Clauset took his science classes on a marine biology field trip. From 1992 to 2009 the destination was Newfound Harbor Marine Institute ("Sea Camp") on Big Pine Key, Florida. Students stopped first at the Everglades and then headed to Sea Camp for three days of snorkeling and marine biology labs. At the end of the trip, students spent a day at Sea World in Orlando before heading home to North Carolina. Over 1000 students participated in this marine biology field trip. |
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