Fossil Crossword

3. Rock that has undergone changes caused by heat and or pressure
5. Caused by wind, floods, landslides, water run-off , etc.
7. The preserved remains or traces of living things
9. Rock that is made from hardened magma (or lava) from the mantle of the earth
11. A fossil that is solid copy of an organism's shape, formed when minerals seep into a mold
13. Occurred at the end Earth's geologic time eras
14. A type of fossil consisting of an extremely thin coating of carbon on rock
15. Changing of a species over time until it eventually is a different species
16. Describes a type of organism that no longer exists anywhere on Earth
17. Person that studies the Earth
19. Missing parts of rock layers, therefore parts of the fossil record from this area may be missing as well.

1. Rock that fossils are found in, formed by the accumulation and hardening of sediment over time to form rock
2. A type of fossil that provides evidence of the activities of ancient organisms
4. In undisturbed sedimentary rock layers, the oldest rock layers are on the bottom and the youngest are on the TOP
6. One or more species disappears from earth
7. A break in the Earth's crust, usually caused by earthquakes
8. A scientist who studies fossils to learn about organisms that lived long ago
10. The layer of the Earth beneath the crust, it is formed of molten magma
12. Rock that forms from hardened magma, it will be younger than any rock layer it goes over or through
18. Fossil Fossils of widely distributed organisms that lived during only one short period and are used to find the relative age of rock layers