Search Results
Showing results 1 to 1 of 1
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-474.png?itok=ZiX0AnNf)
Digging Into the Past
Source Institutions
This activity (on pages 23-27) lets learners simulate the work of scientists who take core samples of Earth's rocky layers to determine geological history.