The document outlines a lesson review on relative and absolute dating, focusing on principles of relative dating and methods to determine the age of rocks. It includes motivational activities, group discussions, and sample problems related to half-lives of specific isotopes. Additionally, it emphasizes the significance of rock ages in understanding Earth's history and scientific principles.

1. Relative
and Absolute Dating

2. Lesson Review
4 pics 1 word

6. Lesson Objectives
1.Enumerate the
principles of relative
dating
2.Determine the age of
rocks using relative and
absolute dating methods
3.Value the importance of
the rock ages to the life
on Earth
11/04/2024
Sample Footer Text 6

7. Motivation Activity
Who do you think is
older?
Or younger?

8. vs.
67 y 66 y

9. vs.
32 y 39 y

10. vs.
70 y 70 y

11. 1. How did you determine who is older and who is younger?
2. What methods or materials can
we use to determine their exact
age?
Analysis

12. Group discussion
using meta cards

13. Group activity using
arts and craft materials

14. Presentation of Outputs

15. Absolute Dating
using

16. Sample Problem
The half-life of Th-232 is 1.40
x1010
years. After 9.8x1010
years,
how many grams will be left
from a 256-gram sample of Th-
232?

17. Sample Problem
How much of a 500-gram
sample of Potassium-42 is left
after 62 hours if the half-life of
K-42 is 12.4 hours?

18. Generalization &
Valuing
What are the methods of determining
the age of rocks?
What are the five principles of Relative
Dating?
What is the importance of the rock
ages in science and history?