Worksheet
Curated OER

Get a Half-Life Student Worksheet

For Students 6th - 8th
Young scientists use a worksheet to help them perform a lab on the decay of a radioactive element. The worksheet serves as both a task guide and a lab sheet for pairs of learners. This activity requires a calculator and has excellent...
Lesson Plan
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Get a Half-life!

For Teachers 9th - 12th
Learners explore decay functions and the half-life of a substance. Through an M&M activity with calculators, students collect and graph data. They determine the linear, quadratic and exponential functions of the graph. Learners...
Worksheet
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Demonstrating the Half-Life of a Radioactive Isotope

For Students 8th - 10th
In this half-life worksheet, students use 100 pennies to simulate radioactive isotopes and half-life. They place the pennies in a box and shake the box. All pennies that turn up tails are removed from the box. They represent the isotopes...
Worksheet
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Calculating Half-Life Problems

For Students 8th - 10th
In this half-life learning exercise, students are given a particular mass of an isotope of cesium and its half life. They are to determine how much cesium will remain after 90 years. They are guided through the problem solving process.
Worksheet
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Half-Life Problems

For Students 9th - 12th
In this half-life learning exercise, students calculate the half-life of isotopes, they find masses of isotopes remaining after specified times, and they find particular amounts of time needed to pass for given masses of isotopes to decay.
Worksheet
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Chapter 19 Review, Section 1: Oxidation-Reduction Reactions

For Students 9th - 12th
Here is a chemistry worksheet that was designed for a specific textbook section dealing with oxidation-reduction reactions, but it can be used in conjunction with any general chemistry curriculum. To complete the page, learners must...
Worksheet
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Oxidation-Reduction Reactions

For Students 9th - 12th
Focus on oxidation-reduction reactions with a review worksheet. Junior chemists answer short-answer questions before they write balanced half-reaction and full-reaction equations.
Worksheet
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Chapter 19 Review, Mixed Review: Oxidation-Reduction Reactions

For Students 9th - 12th
Here is a short, but well-rounded review of redox reactions. Chemistry apprentices identify the type of reaction, write half-reaction equations, balance equations, and assign oxidation numbers. Being brief, this would make a purposeful...
Lesson Plan
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Half Life Lab

For Teachers 7th
Seventh graders model radioactive decay using pennies, collect data from their model, apply scientific visualization techniques to their data and create animated models explaining the concept of radioactive half-life.
Worksheet
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Chemistry Quiz 4-Redox Reactions

For Students 10th - Higher Ed
In this oxidation/ reduction worksheet, students solve eight multiple choice problems related to redox reactions. They determine half reactions, they calculate standard cell potentials, they identifying oxidizing and reducing agents and...
Worksheet
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Writing Half Reactions

For Students 9th - 12th
In this half reactions activity, students read about redox reactions and learn how to write half reactions showing the oxidized part of the reaction and the reduced part of the reaction. Students are given 10 redox reactions and they...
Lesson Plan
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Redox Equations and the Half-Reaction Method

For Teachers 9th - 12th
Students review half-reactions and practice balancing redox equations in order to help them solve problems in chemistry.
Interactive
CK-12 Foundation

Radiocarbon Dating

For Students 9th - 12th Standards
How do we know how long ago a dinosaur lived or an ancient fire pit was used? Scholars learn about the application of carbon dating and half lives to discover things about the past. They adjust the amount of radioactive carbon in the...
Assessment
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Physics 152 Fall 2004 Final Exam, Parts A, B, C, D

For Students 9th - Higher Ed
At the end of a general physics course focused on light and electricity, you can administer this exam. Concepts covered include electromagnetism, circuits, induction, light rays, lenses and mirrors, characteristics of light, electron...
Lesson Plan
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Raw Seafood ~ On the Half Shell

For Teachers 7th - 12th
The topic is fascinating, but there is not much for learners to do here. Food borne illness has always been a problem for humans to face, and here, data from the Center for Disease Control is analyzed. Learners look at the number of...
Assessment
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Physics Final Exam, Part A

For Students 11th - 12th
Here is a comprehensive and cohesive final exam for your high school physicists. A variety of question styles are incorporated, such as multiple-choice and problem-solving. Topics are too many to list, so you will want to review the exam...
Worksheet
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Absolute Ages of Rocks

For Students 7th - 10th
In this age of rocks activity, students answer five matching questions about terms related to the decay of atoms. They use a strip of paper to simulate half life of atoms and determine the total amount of time it took to deplete the paper.
Worksheet
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Radioactive Dating

For Students 9th - 12th
In this radioactive dating worksheet, students use their reference guide in their text book to find the half-lives of 4 isotopes. They use a decay chart to help determine the half-lives and age of given bones and samples of radioactive...
Worksheet
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Chem 152-Nuclear Chemistry

For Students Higher Ed
In this nuclear chemistry worksheet, students answer ten questions about radioactive decay, half life, electron capture and alpha emission.
Lesson Plan
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What is the Relationship Between Radioactivity and Radon?

For Teachers 9th - 12th
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...
Worksheet
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Finding the Percent of Iron in Lawnsand

For Students 9th - 12th
In this percent of iron in lawnsand worksheet, students perform a titration of lawnsand using potassium manganate (VII) solution and find the number of moles of iron in the sample. Students use the number of moles to find the mass of...
Worksheet
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Investigating Osmosis

For Students 7th - Higher Ed
A thorough investigation of cell transport is provided when completing the assignment. The first half requires biology class members to answer questions about diffusion and osmosis with the aid of diagrams. Then they fashion an...
Lesson Plan
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"Easter" Egg Genetics

For Teachers 7th - 9th
Using plastic Easter eggs to represent parent phenotypes, genetics enthusiasts simulate the passing of alleles. They record the phenotype of each half of the egg, one representing the mother's and one representing the father's. They...
Activity
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M&M Science and Math

For Teachers 6th - 12th
A series of math and science activities feature M&M's® as manipulatives to help kids work through equations. The resource includes exercises on finding averages, percent of compositions, moles in chemical reactions, genotypes and...