isotope | STAO

Bean Bag Isotopes

by msander | Aug 2, 2017 | Gr. 11-12 Chemistry

Introduction Studies of radioactivity at the beginning of the 20th century made it possible to investigate the actual structure and mass of atoms. Gradually, evidence began to build that atoms of the same element could have different masses. These atoms were called...

What can you learn from ancient skeletons? – TED-Ed

by msander | Jun 15, 2017 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry

Ancient skeletons can tell us a great deal about the past, including the age, gender and even the social status of its former owner. But how can we know all of these details simply by examining some old, soil-caked bones? Farnaz Khatibi examines a fascinating branch...

Bean Bag Isotopes

What can you learn from ancient skeletons? – TED-Ed

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