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136 reviewed resources for radioactive isotopes

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Introducing the Atom

For Teachers 6th - 12th Standards
Young scholars discuss how small they must cut something before it is no longer fundamentally the same. An online activity challenges and engages pupils in learning about the periodic table. Two hands-on activities cover elements and...
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Earth's Age: The Dating Game

For Teachers 6th - 8th
Students conduct a simulation to determine radioactive decay and half-life. Using pennies, dice or sugar cubes as isotopes placed in shoe boxes simulating rocks, they hold five trials representing 1000 years each to find the theoretical...
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Half-Life

For Students 9th - 12th
In this half-life worksheet, students are guided through the steps of solving radioactive decay problems. They solve nine problems finding rates of decay, half-life and quantities of substances remaining after given amounts of time.
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Determining the Age of Fossils

For Teachers 9th - 12th
High schoolers explore radioactive dating using a radiometric Dating website. In this chemistry lesson plan, students will work in small groups to collect data that shows how fossils are dated. As a follow-up, high schoolers will...
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7:50
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Barium

For Students 9th - Higher Ed Standards
One radioactive isotope of barium has a half life that is longer than the age of the universe. Chemistry students and a professor present a video, focused on barium, as part of a series on the periodic elements. They share the...
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Chem 152-Nuclear Chemistry

For Students Higher Ed
In this nuclear chemistry instructional activity, students answer ten questions about radioactive decay, half life, electron capture and alpha emission.
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What is the Nucleus Like?

For Students 9th - 12th
In this nucleus of an atom worksheet, students answer 19 multiple choice questions about the structure of the atom, radioactive decay, isotopes and half life.
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What is Radioactivity?

For Teachers 9th - 12th
Students use a geiger counter to record changes in the amount of radioactivity produced by different objects. They research articles which mention radiation and discuss them. They work together to complete an activity and worksheet.
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Geological History Vocabulary

For Students 9th - 12th
In this geological history worksheet, high schoolers define 17 terms associated with index fossils, nuclear decay, and radioactive decay.
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Alphas, Betas and Gammas Oh, My!

For Teachers 8th - 12th
Referring to the periodic table of elements, nuclear physics learners determine the resulting elements of alpha and beta decay. Answers are given in atomic notation, showing the atomic symbol, mass, atomic number, and emission particles....
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Determining the Age of Fossils

For Teachers 9th - 12th
Students examine the concept of radioactive dating. In this radioactive dating lesson, students investigate how to determine the ages of fossils and rocks as they learn about half-life radioactive decay.
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Radioactive Decay: A Sweet Simulation of a Half-life

For Teachers 9th - 12th
Young scholars demonstrate rates of decay of unstable nuclei can be measured. They understand ratios and multiplication of fractions. They simulate radioactive decay. They read about the accomplishments of scientists.
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The Building Blocks

For Teachers 7th - 12th
This PowerPoint is a comprehensive review of all the facts related to an atom's basic structure and function. What makes this unique is that it is geared toward an audience of junior geologists. After introducing the periodic table of...
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6:03
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Uranium

For Students 9th - Higher Ed Standards
Should we be afraid of uranium? Video 92 of 118 on the periodic table of elements examines uranium. It covers the facts, misconceptions, dangers, and safety precautions for working with this radioactive element.
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Radioactive Decay

For Teachers 9th - 12th
Students generate a radioactive decay table for an imaginary element, use their data to plot a decay graph, develop the concept of half-life, and use the graph to "age" several samples.
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Absolute Ages of Rocks

For Students 9th - 12th
In this ages of rock worksheet, students review the processes involved with determining the ages of rocks which includes the radioactive decay of carbon-14. This worksheet has 5 matching and 5 short answer questions.
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Measuring Absolute Time

For Students 8th - 10th
In this absolute time worksheet, students answer eleven questions about ways to measure the age of fossils. They define half-life, answer questions about radioactive dating, tree rings and varves.
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A Phylogenetic Perspective for the Cladistically Challenged

For Teachers 6th - 12th
Students use M&Ms to simulate radioactive decay of elements.
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Chapter 22 - 25 Review

For Students 10th - Higher Ed
In this chemistry review worksheet, students explore their knowledge of solutions, acid and bases, nuclear reactions, and radioactive decay as they answer 33 matching, fill in the blank, and short answer questions.
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Energy and Atoms

For Students 9th - 12th
In this atoms learning exercise, students review atoms, atomic number, and mass number. Students determine what happens when atoms become radioactive. This learning exercise has 8 fill in the blank and 9 short answer questions.
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Energy and Atoms

For Students 9th - 12th
In this atoms worksheet, learners review atomic number and mass number of atoms plus what happens when an atom is radioactive. This worksheet has 8 fill in the blank and 9 short answer questions.
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Worksheet #6, Exponents, Interest, and Radioactive Decay of Isotopes

For Students 11th - 12th
For this calculus worksheet, students sketch graphs of given exponential functions. They compute the principal needed to have a given ending balance when the interest is compounded at varying times. Students use a simple exponential...
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Nuclear Reactions

For Teachers 9th - 12th
Starting with a recap of atomic structure, these slides continue by comparing different isotopes of uranium and explaining which are stable and which have a decay period and emit alpha or beta particles. Gamma decay is just mentioned on...
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4:08
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What Can You Learn From Ancient Skeletons?

For Students 6th - 12th Standards
Skeletons may not be able to speak, but they can still tell us a lot. High schoolers watch a short video about the ways biological anthropologists can use a skeleton's bone structure to determine age, gender, place of birth, and social...

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