Question

across

1. this is the oldest rock
2. cast fossil is a ________ of the organism
3. fossil record may give clues about this
4. fossils found in this rock
5. layers of sediment over many years
6. \dug up\
7. example of a fossil
8. a fossil is ________ of the past
9. found in the fossil record
10. mold fossil is an _______ of the organism
11. example of a fossil

down

1. these replace the organism over time
2. fossil that shows activity
3. study fossils
4. one way to preserve fossil
5. one way to preserve a fossil
6. example of trace fossil
7. fossil are often covered by this
8. true form fossil is a _______________
9. example of a fossil

Explanation:

Each answer is derived from key concepts in fossil and earth science terminology, matching the clue's description and required word length for the crossword grid.

Answer:

ACROSS

1. ZIRCON
2. CAST
3. EVOLUTION
4. SEDIMENTARY
5. STRATA
6. EXCAVATED
7. TRILOBITE
8. REMAINDER
9. SPECIES
10. IMPRESSION
11. AMMONITE

DOWN

1. MINERALS
2. TRACE
3. PALEONTOLOGY
4. FREEZING
5. PETRIFICATION
6. FOOTPRINT
7. SEDIMENT
8. PRESERVED ORGANISM
9. DINOSAUR BONE