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Radioactive dating animation

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About

Radioactive Decay and Absolute Age Determinations

NAGT's mission is to support a diverse, inclusive, and thriving community of educators and education researchers to improve teaching and learning about the Earth. NAGT represents the collective voice of K teachers, college and university faculty, and informal educators in museums and science centers who share a vision to build geoscience expertise and an Earth-literate society through high-quality education. We seek an exceptional Executive Director to build on past successes and to provide strategic leadership to guide NAGT toward new opportunities for growth. To learn more about the position and instructions to apply, visit this website. Titled, " Making the first and last geoscience class count ," the article calls attention to opportunities within introductory geoscience courses to address grand societal challenges that are rooted in the geosciences, thus helping students develop "an appreciation for the global perspective, cultural sensitivity and scientific insight that inform decisions regarding the challenges humans will face in the future. Sean Fox, Carleton College Reuse:

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Half-life part 2 Introduction This lesson follows on from lesson 3 so it might be worthwhile quickly revising that before you start. Radioactivity is measured in becquerels. The unit of radioactivity is named after Henri Becquerel, who discovered it. A given isotope always takes the same amount of time for the count rate to decrease by a half.

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Discover how scientists determine the age of fossils, rocks, and other geologic phenomena by using the known half-lives of isotopes within each specimen, a technique known as radioactive dating. Radioactive Dating Ever wonder how scientists concluded the age of the earth to be about 4. Well, scientists are able to answer all of these wondrous questions and more by use of a process called radiometric, or radioactive, dating. Radioactive dating enables geologists to record the history of the earth and its events, such as the dinosaur era, within what they call the geologic time scale. Radioactive dating uses the ratios of isotopes and their specific decay products to determine the ages of rocks, fossils, and other substances.

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Lesson 15: Half-life part 2

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