M&M Lab 
The purpose of this activity is to introduce the students to the concept of radioactive decay and halflife through a handson data collection and analysis activity with M&M's. The data from this activity leads directly to the Nuclear Decay Model activity. 
1. Count out exactly 100 M&M's, put them into a box, and cover the box. 2. Record 100 M&M's under time 0 on the data chart. 3. Shake the box. 4. Remove the cover. 

5. Take out all the M&M's where the letters are pointing up. Set them aside or eat them. 6. Count the remaining M&M's and record under the time 1 on the data chart. 7. Repeat steps 36 until there are no M&M's in the box. Record the number left in the box each time you remove those pointing up. Note: Never put M&M's back in the box. If none of the M&M's point up, record the same number twice.  

8. To graph the data, label the xaxis Time (Trial) and the yaxis # M&M's in Box 9. Plot the points from your data chart on the graph. 10. Use your graph to determine the number of trials needed to have 50 M&M's remaining. 

11. Suppose that an M&M was shaped like a box that had 6 sides and only one side was marked with M&M. Would it take more, less or the same amount of time to remove half of the M&M's? Justify your answer. 
