|
|
1
|
Thick, clear, sticky substance
|
4
|
Study of ancient life
|
5
|
Animals without backbones
|
6
|
One of the best preservers of fossils
|
7
|
Person who studies fossils
|
8
|
Examples include footprints, toothmarks, trails
|
10
|
Dead
|
|
|
|
|
2
|
Examples include bones, teeth, claws, eggs
|
3
|
Rocks that formed when clay, mud, or sand hardened
|
9
|
Must be more than 10,000 years old
|
|
|