by msander | Mar 4, 2021 | Gr 4-6 Science & Tech, Gr 9-10 Science, Gr. 11-12 Physics
Introduction Hans Christian Oersted (1777–1851), a Danish physicist, was performing an experiment in 1820 when he noticed that whenever an electric current from a battery was switched on or off, a nearby compass needle was deflected. Through additional experiments,...
by Milan Sanader | Jan 25, 2021 | Gr. 11-12 Biology
Knowledge of the structure and function of DNA and RNA is key to an understanding of molecular biology and cellular genetics. The processes of transcribing DNA to create mRNA and translating RNA to produce a sequence of amino acids are fundamental functions of cells....
by Milan Sanader | Jan 4, 2021 | All Science Teachers, gender, General Interest
The discovery of the structure of DNA was one of the most important scientific achievements in human history. The now-famous double helix is almost synonymous with Watson and Crick, two of the scientists who won the Nobel prize for figuring it out. But there’s another...
by msander | Mar 6, 2019 | Gr. 11-12 Biology
This is a great resource for teaching about chromosomal abnormalities for genetics and evolution at the same time. Students investigate differences between chromosomes (like inversions and deletions) of Humans, Chimps, Gibbons, and Orangutans to determine their...
by msander | Feb 18, 2019 | Gr 4-6 Science & Tech, Gr 9-10 Science, Gr. 11-12 Physics
Introduction Measuring tiny volumes with precision and accuracy requires a micropipet. In the biology lab, micropipets are used for preparing and loading DNA samples, microscale experiments and the preparation of many types of samples. These applications rely on good...
Recent Comments