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Posted by: Kim_Hamilton on 01/15/2009 06:11 PM
Updated by: Kim_Hamilton on 01/16/2009 09:27 AM
Expires: 01/01/2014 12:00 AM
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Science Day Explodes with Enthusiasm at Hazel Fischer School ~By Brett Loring, ThePineTree Pedaler
Hazel Fischer students got to play detective during Science Day this week thanks to Stewardship Through Education (STE) who funded the materials for the special project. Wendy Harrison coordinated volunteers, including her husband and newest Vallecito Union School District Board member, Wayne Harrison, for teaching and monitoring three different science stations for third through fifth graders.....
   
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While students analyzed the ink evidence of different markers to solve a “crime,” they learned how three primary colors combine to make black and how crime scene investigators study and differentiate the ink patterns left by different sources. This session on chromatography was led by Wendy herself while students marveled at unique colorful designs that were extracted from the original black ink by water on a paper towel.
Wayne Harrison explained the properties of dry ice and that it serves as a better refrigerant than your “everyday ice,” reaching a temperature of 110 degrees Fahrenheit. Students were mesmerized as he dropped a chunk in a clear glass bowl and bubbles began to form as they listened to the ice hiss. Explaining that carbon dioxide was the source of this ice, Wayne placed a chip of dry ice in a bottle and a balloon over the mouth of the bottle. As the gasses inflated the balloon he demonstrated with another balloon filled with air that the carbon dioxide-filled balloon would fall faster because the gas in it was heavier than air.
With laptop and programming software, Bob Shartle showed students how to construct and program a Lego Mindstorm robot. Voice activation and motion sensors added to the drama of the finished product while students watched in wonder as the robot performed perfectly to the way it was programmed. Students at Avery Middle School have a chance to participate in the Robotics program as part of their electives.
Ice, robots, and CSI work made for a fun day for students and staff alike, who all learned some new things as part of this fun day sponsored by STE and supported by Hazel Fischer Parents Club and volunteers.
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