PhET
Radioactive Dating Game
Uranium 235 has a half-life of over 700 million years and is the fuel used in the atomic bomb dropped on Hiroshima, Japan. Pupils see the half-lives and decay rates of Carbon-14 and Uranium-238. They also take measurements of these two...
Curated OER
What is the Relationship Between Radioactivity and Radon?
In this radon and radioactivity worksheet, students analyze the data of the isotopes of elements that occur in the decay series of uranium-238. Students answer 6 questions about the isotopes, their half-lives, their potential threat and...
Curated OER
Absolute Ages of Rocks
In this rocks worksheet, students review the process of absolute dating of rocks and compare it to the relative dating process. This worksheet has 16 fill in the blank questions.
Virginia Department of Education
Determining Absolute Age
How can radioactive decay help date old objects? Learners explore half-life and radioactive decay by conducting an experiment using pennies to represent atoms. Young scientists graph data from the experiment to identify radioactive decay...
Virginia Department of Education
Radioactive Decay and Half-Life
Explain the importance of radioactive half-life as your high school biologists demonstrate the concept by performing a series of steps designed to simulate radioactive decay. Pupils use pennies to perform an experiment and gather data....
Curated OER
Protons, Neutrons, and Electrons
Using the periodic table of elements, young chemists fill in a chart of isotopes to show the atomic number, mass, charge, number of protons, number of neutrons, and number of electrons. The chart is followed by 11 questions that...
Curated OER
Nuclear Power
In this nuclear power instructional activity, students read how atoms can be changes and are unstable. Students compare 3 kinds of radiation and the difference between fission and fusion. Then students complete 10 matching and 2 short...
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Unit Conversion Problems
In this unit conversion worksheet, students solve 15 problems by using conversion factors to find their answers. They show all their work and express their answers in scientific notation with the proper number of significant figures.
Curated OER
Math in Science-Radioactive Decay and Half-Life
In this radioactive decay and half-life worksheet, students use given half-lifes to calculate the amount of time it will take for certain amounts of elements to decay. They also find the age of samples and determine how many grams of...
Curated OER
Nuclear Power
In this nuclear power instructional activity, students compare fission and fusion. Students learn about the different kinds of radiation. This instructional activity has 2 short answer questions and 10 matching questions.
Curated OER
How Do We Measure Absolute Time?-Geologic Clocks
In this absolute time worksheet, students define radiometric dating, tree rings and varves as means to measure absolute time. They are given information about each of these methods of dating.
Curated OER
Determining the Age of Fossils
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.
Curated OER
Nuclear Chemistry
In this nuclear chemistry learning exercise, students solve nine decay problems. They determine what forms in each problem given the radioactive element.
Curated OER
Rock of Ages
Students use a video, the Internet and hands-on activities to explore how to determine the age of rocks and fossils based on radioactive decay data.
Curated OER
Early Atomic Theory Homework
In this early atomic theory learning exercise, high schoolers answer 4 questions about the Law of Definite Proportions, the Law of Conservation of Mass and Dalton's Laws. Students are given 5 statements to determine if each true...
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Average Atomic Masses Homework
In this average atomic masses worksheet, students solve 3 problems. They find the average atomic mass using data from a mass spectrometer, they find the average atomic mass of an element using isotope information and they explain how a...
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Niels Bohr
In this online interactive history quiz worksheet, students respond to 51 multiple choice questions about Niels Bohr. Students may submit their answers to be scored.
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What is Radon?
Students read an article about radon and its properties. They examine a periodic table and identify the numbers surrounding an element. They discuss the harmful and helpful effects of radiation.
Curated OER
What Is Radon?
Students examine what radon is and which isotope it belongs. They discuss the characteristics of isotopes in general and the atomic number. They complete a worksheet to complete the instructional activity.
Curated OER
Nuclear-Powered Space Probes
In this space probes worksheet, students read about radioisotope thermoelectric generators and how they work. Then students complete 3 short answer questions.
Curated OER
Converting Amount to Mass
In this elements activity, students practice converting a given amount of an element to the mass using its molar mass. This activity has 12 problems to solve.