'Date rocks' presentation slideshows

Chapter 28

Chapter 28. Nuclear Chemistry. Nuclear Reactions. Unstable isotopes, radioisotopes , gain stability by releasing large amounts of energy. Nuclear reactions are not affected by changes in temperature, pressure, or catalysts. They cannot be slowed down, speeded up, or turned off.

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P4 Spaced learning

P4 Spaced learning. Radiation for life. Sparks. Positive and negative charges Objects can be positively charged, negatively charged or neutral (no charge).

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Earth History

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12.2 Fossils: Evidence of Past Life

12.2 Fossils: Evidence of Past Life . On page 67 of your notebook, draw the following table: After we have completed this section, we will come back to this table to complete it as well. 12.2 Fossils: Evidence of Past Life . Anticipation Guide

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If Rocks Could Only Talk, What Would They Tell Us?

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Benefits & Dangers of: Radioisotopes

Benefits & Dangers of: Radioisotopes. Dating (not that kind). C- 14 is used to date Fossil Living organisms incorporate C-14 into their structure, along with C-12 C-14 decays with known half-life 14 C ? 14 N + 0 ? comparing amounts of C-14 & C-12 can figure how many

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Quiz 2 ? Open Book

Quiz 2 ? Open Book. Write your NAME and ID . In 5 sentences or less , explain how radioactivity is used to date rocks. You do NOT need to explain the basic physics of radioactivity ; assume that the reader of your quiz is familiar with that.

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