Which Rock is the oldest?
A Granite
B Sandstone
C Limestone
D Sandstone
E Shale
F Basalt
A
B
C
D
E
F
The canyon formed before the layers
The canyon formed after the layers
Rock B formed before rock C
Rock C formed before rock B
between 150 million and 100 million
between 100 million and 50million
between 199million and 150 million
between 50 million and 1 million
between 1 million and 226 thousand
between 199 million and 150 million
Choose the four sedimentary rock layers
Rock A
Rock B
Rock C
Rock D
Rock E
Rock F
Chigneous rock layersoose the 2
