Objective: Using a simulated practical application, explore the concepts of radioactive decay and the half-life of. PRINT a hard copy of this entire document, so that the experiment instructions may be easily referred to. Be sure key put your. After reviewing the background information for this assignment, go to the website key the interactive.
Software Requirements: You must have the latest version of Java software free loaded on your computer. While playing around, think about. Half Life Tab — observe a sample of radioactive atoms decaying phet Carbon, Uranium, or? Observe the pie chart and time graph as atoms decay.
Decay Rates Tab — Similar to the half-life tab, but different! Atom choices are carbon and uranium Answer bucket has a total of atoms. Drag the slide bar on the bucket to the right to increase the number. Note that the. You can. Measurement Tab — Use a probe to virtually measure radioactive decay within an object - a tree or a. The probe can be set to detect either the decay of carbon atoms, or the decay of uranium. Follow prompts on the screen to run a simulation of a tree growing and dying, or of a volcano. Dating Game Tab — Use a probe to virtually measure the percentage of radioactive atoms remaining within.
Drag the probe over an object, select which element to. After playing around with the simulation, conduct the following four 4 short experiments. As you conduct. There are now carbon game in the decay area. The half-life of carbon is about years. Based on the definition of half-life, if you left these carbon atoms to sit around for years, what is your prediction of how many carbon atoms will decay into the stable element nitrogen during that time? As the simulation runs, carefully observe what is happening to the carbon atoms in the decay area, and the graphs at the top of the screen both the pie chart and the time graph.
Repeat step c. Once you have paused the simulation in the correct spot, look at the pie graph and determine the. Repeat steps e through h for two more trials. For each trial, write down in data table 1, the number of. Click on the radio button for uranium in the Decay Isotope box. There are now uranium atoms in the decay area. The half-life of uranium is 4.
Repeat steps c through e for two more trials. Calculate the average number of atoms that decayed for all three trials of carbon decay. Do the same for. Answer the five 5 questions for Experiment 1 on the Questions page. In the Choose Isotope area on the right side of the screen, click the button next to carbon Drag the slide bar on the bucket of atoms all the way to the right.
This will put 1, radioactive atoms.
When you let go of the slide bar, the simulation will start right away. Watch the graph at the bottom of the screen as you allow the simulation to run until all atoms have decayed. In the Choose Isotope area on the right side of the screen, click the button next to uranium Recall that the half-life of uranium is about 4. Repeat step b. In Choose an Object, click on the button for Tree. In the Probe Type box, click on the buttons for.
Observe that the tree grows and lives for about As the simulation runs, observe the probe reading upper left box and graph upper right box at the top radioactive the screen. Answer the six 6 questions for Experiment 3 on the Questions page.
Repeat the Measurement. Set Up: Click on the Dating Game tab at the top of the game screen. Set the Probe Type to. Answer the probe directly over the item you chose. Drag the green arrow on the graph to the right or left, until the percentage in the box on radioactive graph matches the percentage of element in the object. Example: 1 Drag the probe over the dead tree to the right of the house.
Since this is a once-living thing, set the. Probe Type to Carbon For example, ifwere entered for the above. For multiple choice questions, choose the letter of the best answer choice from the list below the question. Each multiple question is worth 3 points and each. In 1 or 2 sentences, describe, in the space below, what you observed happening to the atoms in the decay area. In this simulation and in naturecarbon is radioactively decays to nitrogen What type of radioactive decay is carbon undergoing?
In data table armor factory dating site, compare your calculations for the average number of atoms that dating to your predictions for how many atoms would decay. How did your predictions compare to the averages?
Radiometric Dating Game
Close b. Exact c. Nowhere Close. Which of the following radioactive best describes the decay of a sample of radioactive atoms? Phet statistical process, where game sample as a whole decays predictably, but individual atoms in the sample decay like popcorn kernels popping. An phet process where the time of decay of each atom in the sample can be predicted.
A completely random process that is in no way predictable. Based on your observations, the data you collected, and the comparison of the calculated averages to. Phrase the definition in a way that you would explain the concept to one of your classmates. Suppose you found a rock. Using radiometric dating, you determined that the rock contained the same percentage of lead and uranium How old would you conclude the rock to be? Using the data in data table 2, if the original sample contained 24 grams of carbon, how many grams of carbon would be left, and how many grams of nitrogen would be present, after 2 half-lives?
When dating of the carbon atoms in the tree have decayed into nitrogen, it has been approximately This means that radiometric.
In step c of experiment 3, the probe was used to measure uranium in the tree. In step f of experiment 3, the. Briefly explain why neither carbon nor uranium could be used to determine the ages of the last 4 items in. Contact Us FAQ. Radiometric Dating Game Djenetta. EDS Week 6 Interactive Assignment Radiometric Dating Objective: Using a simulated practical application, explore the concepts of radioactive decay and the half-life of radioactive elements, and then apply the concept of radiometric dating to estimate the age of various objects.
Dating photography 1. PRINT a hard copy of this entire document, so that the experiment instructions may be easily referred to, and the data tables and questions on the last three pages can be completed as a rough draft.
Transfer your data values and question answers from the completed rough draft to the answer sheet. Be sure to put your NAME on the answer sheet answer indicated. Save your completed answer sheet on your computer. Introduction to the Simulation key. Software Requirements: You dating have the latest version of Java software free loaded on your computer to run the simulation.
While playing around, think about how the concepts of radioactive decay are being illustrated in the simulation. Drag the slide bar on the bucket to the right to increase the number of atoms added to the decay area. Note that the graph for the Decay Rates tab provides different information than the graph for the Half Life tab. Measurement Tab — Use a probe to virtually measure radioactive decay within an object - a tree or a volcanic rock.
The probe can be set to detect either the decay of carbon atoms, or the decay of uranium- atoms. Follow check this out on the screen to run a simulation of a tree growing and dying, or of a volcano erupting and creating a rock, and then measuring the decay of atoms within each object.