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<strong>Bonding</strong> <strong>Unit</strong><br />
Activity #5: Polarity Stations<br />
Question<br />
How can we explain interactions of matter by the concept of polarity?<br />
Objective<br />
Explain interactions of matter by using the concepts of polarity, as well as density,<br />
bonding, and molecular geometry.<br />
Materials<br />
Station 1: Bending Water – balloons, water<br />
Station 2: Floating Chads – chads from an index card with one side blackened with a<br />
pencil, large Erlenmeyer flask, about 1 -2 inches depth of hexane and water<br />
Station 3: Mini Lava Lamp – Pre-form 2L bottle, pop bottle screw cap, mineral oil,<br />
water, food coloring, glitter (optional)<br />
Station 4: Liquid Art – Petri dish, milk, food coloring, dish soap, beaker, toothpick<br />
Station 5: Magic Salt – balloon, salt<br />
Station 6: Magic Sand – Regular and Magic sand, water, 2 beakers, spoon, tub for<br />
“used” sand<br />
Station 7: Stain remover – turpentine, kerosene, alcohol, water, used motor oil, strips<br />
of cloth,<br />
Station 8: Penny Stacker – pennies, water, alcohol<br />
Safety Concerns<br />
Hexane is flammable! Keep away from flame and heat. Store volatile liquids in the<br />
fume hood to evaporate. Liquids can be used again for the lab the following year.<br />
Refer to MSDS and Flinn Suggested Disposal Methods for additional information on<br />
safety, handling, and disposal methods<br />
Source<br />
Tracy Veresh, Ferndale High School, Ferndale, MI and<br />
Janet Lucius, Rochester High School, Rochester, MI
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