Page 109 - Science Course 3 (Book 2)
P. 109
Across
4. copies of organisms made when
groundwater f lls pore spaces
5. evidence of the activity of an ancient
organism
6. tiny fossils about the size of a speck of
dust
7. actual remains of organisms
8. a carbon outline of an organism left
after gases and liquids are driven off
Down
1. a scientist who studies fossils
2. the idea that geologic processes occur
ring today are similar to those that have
occurred in the past
3. the idea that conditions and creatures
on Earth change in quick, violent events
Mo12-L1: Key Concept Check
Direction: Answer each question in the space provided
Preserved Remains
Type of
Preservation Describe each type of preservation Describe how each fossil forms.
Preserved 1. 2.
remains
Carbon f lms 3. 4.
Mineral 5. 6.
replacement
Molds 7. 8.
101