Curated OER
Unknown Element Project
Students work with a partner to determine the identity of an unknown element based on given descriptions. Groups use classroom textbooks, encyclopedias, and science internet sites to identify their unknown element then write a report as...
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Radioactivity Experiments
Students study the difference between types of ionizing radiation and how elements are transmuted. They determine that radiation is normal and surrounds us. They calculate the amounts of alpha, beta and gamma radiation emitted from a...
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Absolute Dating/Radioactive Dating
Students explore radioactive decay. In this radioactive atoms lesson students complete a lab to help them understand the relationship between radioactive atoms vs stable atoms.Â
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Radioactive Samples
Students examine the different types of radioactivity. In this radioactive samples lesson students complete a lab activity on radiation and complete a handout.
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Radioactive Half-Life
In this half-life learning exercise, students determine how much of the radioactive isotopes will remain after a certain amount of time. This learning exercise has 11 problems to solve.
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Answers for Elements and Compounds Crossword Puzzle
In this chemistry worksheet, students are provided with the answers to a 28 clue crossword puzzle about elements and compounds.
Curated OER
Chemistry 115 Practice Exam 3
Radioactive decay, pH, properties of elements, organic compounds, and stoichiometry are all touched upon through this practice chemistry exam. It always helps learners to take a practice test in preparation for the actual exam. This...
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History of the Atom
This is a tremendous overview of the tiny atom. Journey through the history of human understanding of this basic building block of matter. Examine each of the sub-atomic particles in detail: neutrons, protons, electrons, quarks. Peruse...
CK-12 Foundation
Marie Curie's Classroom
What makes some elements stable and others radioactive? Scholars adjust the number of protons and neutrons in an element then observe its decay. The simulation includes a graphical representation and the chemical formula, as well as...
Curated OER
Structure of the Atom
In this atom worksheet, students review the structure of an atom. Students also explore radioactive elements and quarks. This worksheet has 10 fill in the blank, 6 true or false, 1 short answer, and 3 multiple choice questions.
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What Are Elements?
Students investigate elements by by defining scientific terms. Â In this Periodic Table of Elements lesson, students utilize a glass of water, and powdered fruit drink to perform a lab activity demonstrating properties of certain...
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Radiochemistry
In this radiochemistry instructional activity, students read about how scientists learn more about elements using radioactive isotopes. Students answer three critical thinking questions about the reading and radiochemistry.
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Industrialization of the American Landscape
Students explore the Chernobyl incident and the resulting environmental health impacts. They explore three different isotopes that were released into the atmosphere. Through inquiry, students determine the difference between types of...
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Make Your Own Periodic Table Worksheet
In this periodic table worksheet, students make their own periodic table using 12 given elements and their properties. Students use these elements to arrange them into the proper periods and families based on their properties.
Curated OER
Elements and Compounds
Middle schoolers explain how radioactive decay occurs. In this physical science lesson, students simulate radioactive half-life through an experiment. They graph their data and share their results in class.
Virginia Department of Education
Isotopes
Lead your class through the amazing world of isotopes as they investigate the various properties they contain and further understand their respective location on the periodic table. They explore half-lives and radioactivity as each...
Curated OER
What is the Relationship Between Radioactivity and Radon?
Students examine the relationship between radioactivity and radon. They practice using a geiger counter with different materials. They answer questions to complete the lesson.
Curated OER
What is Radioactivity?
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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Radioactive Decay/Half Life
Students demonstrate radioactive decay using candy corns. In this Physics lesson, students make predictions, collect data and form conclusions about patterns in radioactive decay.
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2009 U.S. National Chemistry Olympiad National Exam - Part I
The 2009 version of the first part of a national chemistry competition is posted for your use with olympiad hopefuls. Test takers deal with 60 multiple choice questions covering an entire year of chemistry curriculum. Use this to...
Curated OER
Dating Popcorn
Young scholars simulate the dating process with popcorn. In this geology activity, students discuss how geologist find the age of rocks by gauging the amount of decay of radioactive elements. They have 6 bags of popcorn and each group...
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Using Radioactive Decay To Determine Age
Learners explore the process of carbon dating fossils to determine their age. They simulate radioactive decay using pennies in a shoe box. Heads represents a decayed atom each time they shake the box. They use the data to calculate the...
NASA
Analyzing Tiny Samples Using a Search for the Beginning Mass Spectrometry
Teach the basics of mass spectrometry with a hands-on lesson. The fourth in a series of six lessons explores how mass spectrometry measures the ionic composition of an element. Learners then compare and contrast relative abundance and...
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Group 14, The Carbon Group
Six slides summarize the details about group 14 in the periodic table, otherwise known as the carbon group. Young chemists will see facts about carbon itself, and then some general uses of related metalloids. This is a short and basic...