CompuServe Messages

#Explain to Daughter

    17-Dec-93 22:17:42
Sb: #Explain to Daughter
Fm: Craig A. Bruska 73007,775
To: All
We were watching a special about Illinios and they talk about the Glaciers that created the paires and gave the time. My daughter asked how they knew the age/time? I explained the idea of layers and the time it take for a layer to form. Can anyone help with with a better or broader answer, she is seven. She is one to task me with some tough quetions to explain at her level since I learned the subject in High School or College. Thank you in advance for help with this. Craig