Celebrating scientific innovation.In honor of its 25th year, Vernier vernier (vûr`nēr), auxiliary scale, either straight or an arc of a circle, designed to slide along a fixed scale. Its unit divisions, usually smaller than those on the fixed scale, permit a far more precise reading. Software & Technology recently recognized outstanding science teachers for their creativity. Here are two of the winners: Chemistry teacher Stacey Howell of Layton, Utah Layton is a city in Davis County, Utah, United States. It is named after Christopher Layton, a Mormon colonizer and leader. As of the 2000 census, the city had a total population of 58,474 and by June 2006 had been estimated at 68,017[1]. , does an experiment called the Ice Cream Lab. Using a temperature probe, students have to determine the cheapest, least-toxic, most environmentally friendly Environmentally friendly, also referred to as nature friendly, is a term used to refer to goods and services considered to inflict minimal harm on the environment.[1] type of salt for solidifying ice cream. Jerry Jensen's biology students at Luverne (Minn.) Independent School District participate in "Ethanol Week," where they grind corn with a mortar and pestle A mortar and pestle is a tool used to crush, grind, and mix substances. The pestle is a heavy stick whose end is used for pounding and grinding, and the mortar is a bowl. The substance is ground between the pestle and the mortar. and track the enzymatic changes that eventually convert the corn into alcohol. |
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