front 1 This type of fossil is formed from minerals filling and hardening in the empty space. | back 1 cast |
front 2 A scientist who studies fossils | back 2 paleontologist |
front 3 This type of fossil gives clues about a living things activities like footprints, tracks, eggshells etc. | back 3 trace |
front 4 This is a timeline of Earth's history. | back 4 Geologic Time Scale |
front 5 This is when a species no longer exists. | back 5 extinct |
front 6 This type of fossil is a space in the shape of a living thing | back 6 mold |
front 7 When animals die, the first part of fossilization is | back 7 the soft parts decay |
front 8 The remains or mark of animal or plant that lived long ago | back 8 fossil |
front 9 This type of fossil preserves the whole body by being stuck in sap. | back 9 amber |
front 10 These come from remains of organisms that lived long ago such as coal, natural gas and oil. | back 10 fossil fuels |
front 11 How long does it take to an organism to become a fossil? | back 11 thousands of years |
front 12 Sand, mud and bits of shells and rocks are called | back 12 sediments |