1. Write the definition of Half Life from your notes.
2. Get a paper plate and a cup full of M & M's. Dump out the candy and determine the mass of the cup.
The mass of the cup is ____________grams.
3. Count the candy and complete the table below.
| Yellow | Orange | Red | Green | Blue | Black | Total | ||
| # in Cup | ||||||||
| % of Sample |
4. Put the candy back in the cup and determine the mass of the cup and the candy.
Compute the mass of the candy and place the amount in the table in row "0" under "Measured Mass"
5. Dump out the candy into the paper plate. Eat all the candy that has the "M" showing.
6. Take the remaining candy and put it back in the cup. Determine the mass of the cup and the candy.
Compute the mass of the candy and place the amount in the table in row "1" under "Measured Mass"
7. Compute the percentage remaining, by dividing the current mass by the initial mass.
8. Repeat step 6 until all candy is gone, or the table is full.
| Half Life Elapsed | Measured Mass (g) | % Remaining |
| 0 | 100% | |
| 1 |
|
|
| 2 | ||
| 3 | ||
| 4 | ||
| 5 | ||
| 6 |
Continue to the back of this sheet.
9. Using graph paper, create a chart of the data in the first table in the area below. Select the proper chart type.
10. Create a chart of the data in the second table in the area below, graphing half-lives elapsed against measured mass.