Procedure
1. Go torandom.org and change the number of dice rolled to 60 in the drop down menu. This will simulate rolling 60 dice. The dice represents the imaginary chemical element, Lokium.
2. Click "roll dice". Make sure you have 60 dice on the website page.
3. Count the dice that land with the 1 side facing up.
4. These number "1" dice represent atoms that have decayed into the daughter element, DOL (daughter of Lokium).
6. In the data table, record the number of dice removed (any that have a number 1) and the number of dice remaining (any dice with a number other than 1) for Test #1.
7. Click the "Go back" button in the dice website. Change the number of dice you will roll to the remaining number of dice.
8. Repeat steps 3 to 7 until you have completed 12 trials, or until all the dice
have been removed.
9. Now repeat the entire process from steps 3-8, collecting data on the second data table (Test #2).
Tables and Graphs
Save Tables and Graphs
1. The graphs will auto-populate as data is added to the tables in the Google Spreadsheet.
OR If you are using the PDF with tables and graphs then connect the points you plotted. Draw a line between these points.
2. Save the spreadsheet with the tables and graphs
a. Click "File"
b. Choose "Download" then "PDF Document"
c. Save to a folder in your computer since you will upload this document to the "Assessments" dropbox in Connexus
OR take a picture of the tables and graphs you created and add those to the "Assessments" dropbox in Connexus
Download the spreadsheet or take a picture of the data tables and graphs you made to upload into the Assessment drop box at the end of Unit 7 Lesson 7. Each table and graph will be worth 3 points towards your grade.
Data Analysis
Before drawing conclusions, you will need to look for patterns and trends in the data. Answer the following questions:
1. What is the range half-life of the element Lokium?
*
2 points
1-3 trials
4-7 trials
11-12 trials
Lokium Half-Life Simulation
2. In the graph above, after which trial was the half-life of Lokium reached? (HINT: Trial 1 started with 60 dice)
*
2 points
Trial 12
Trial 6
Trial 1
Trial 9
3. How do the graphs resulting from your 2 sets of trials compare?
*
1 point
The graphs are vastly different, the 2 half-lives not even close
The graphs are very similar, the 2 half-lives are close
The graphs are exactly the same , the 2 half-lives identical
The graphs are very similar, the 2 half-lives aren't close at all
4. What would you expect a third test to look like? Check all that apply
*
2 points
vastly different graph
very similar half-life
similar graph
completely different half-life
Drawing Conclusions
Having studied the data for patterns and trends, you should now be able to draw some conclusions about how knowing the half-life of the element Lokium would help you determine the absolute age of rock in which this element is found.
5. What is the half life of Carbon 14 according to the graph below?
*
1 point
Captionless Image
5730 years
11460 years
17190 years
22920 years
REMEMBER!!! Make sure that you upload the data tables and graphs to the "Assessments" dropbox in Connexus for this lesson. THESE ARE WORTH A TOTAL OF 12 POINTS!!!! (3 points each)
Google Form: press submit= up to 8 points
Tables and graphs: upload into Connexus unit 7 lesson 7 = up to 12 points
Total Possible Portfolio= 20 points
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