Elizabeth Polston
Student Instructions
Tap to watch the investigation. Tap to begin. Tap a picture, to write and to tell about what you learned. Tap to add to your journal.
Karen Griffin
4
Joy Rice
30
Jill Briscoe
137
CEE
120
Joanna Campbell
576
Sign Up
to watch the investigation.
Tap 
to begin.
Tap 
a picture, 
to write and 
to tell about what you learned.
Tap 
to add to your journal.
