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Robertson, Carol – Science Teacher, 2016
Deoxyribonucleic acid (DNA) is life's most amazing molecule. It carries the genetic instructions that almost every organism needs to develop and reproduce. In the human genome alone, there are some three billion DNA base pairs. The most difficult part of teaching DNA structure, however, may be getting students to visualize something as small as a…
Descriptors: Genetics, Molecular Biology, Molecular Structure, Class Activities
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Hike, Nina; Beck-Winchatz, Bernhard – Science Teacher, 2015
Many students probably know something about space from playing computer games or watching movies and TV shows. Teachers can expose them to the real thing by launching their experiments into near space on a weather balloon. This article describes how to use high-altitude ballooning (HAB) as a culminating project to a chemistry unit on experimental…
Descriptors: Chemistry, Research Design, Space Sciences, Space Exploration