- Stamp/Review Homework
- Pennyum Half Life Lab
HOMEWORK:
- Due tomorrow: finish graphing both trials from your lab in separate colors, then answer the analysis and conclusion questions.
Homework Help:
- QUESTION 1: after 1 shake (half life) there should have been ~ half (or 50%) of the original pennies left, after the 2nd shake, there should have been ~1/4 (25%), etc...
- QUESTION 2: shaking is the half life of time
- QUESTION 3: the remaining pennies were head up, so look at your entire lab for what this meant
- QUESTION 6: after 1 shake there is 1/2 parent and 1/2 daughter, after 2 shakes there is 1/4 parent and 3/4 daughter etc...
- QUESTION 7: hint: find out, by using the pattern in question 6, how many half lifes have passed. then multiply the # of half lives by 713 m.y. for each one to get the age of the rock
- QUESTION 8: same as for question 7
