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 matched to the crossword clue based on paleontology (fossil science) terminology and definitions:

• Across:

1. The oldest rock type is igneous.
2. A cast fossil is a copy of the original organism.
3. Fossil records reveal clues about ancient climate.
4. Fossils are most commonly found in sedimentary rock.
5. Layers of sediment over time form strata.
6. "Dug up" refers to excavated.
7. A common fossil example is a shell.
8. A fossil is a remnant of the past.
9. Species are found in the fossil record.
10. A mold fossil is an impression of the organism (matches the pre-filled "imprint" as a synonym/related term).
11. A dinosaur bone is a classic fossil example.

• Down:

1. Minerals replace organisms over time to form fossils.
2. A fossil showing activity is a trace fossil.
3. The study of fossils is paleontology.
4. One fossil preservation method is freezing.
5. Another preservation method is petrification.
6. A footprint is a common trace fossil.
7. Fossils are often covered by sediment.
8. A true form fossil is a body fossil.
9. A trilobite is a well-known fossil example.

Answer:

Across

1. IGNEOUS
2. COPY
3. CLIMATE
4. SEDIMENTARY
5. STRATA
6. EXCAVATED
7. SHELL
8. REMNANT
9. SPECIES
10. IMPRESSION (matches pre-filled "imprint")
11. BONE

Down

1. MINERALS
2. TRACE
3. PALEONTOLOGY
4. FREEZING
5. PETRIFICATION
6. FOOTPRINT
7. SEDIMENT
8. BODY
9. TRILOBITE