| A | B |
|---|
| A scientist that studies fossils. | Paleontologist |
| Bits of rock, sand, shell, and other material that harden into rock | sediment |
| The remains or mark of an animal or plant that lived long ago | fossils |
| Hardened tree sap that has fossilized organisms | amber |
| An organism that no longer exists. | extinct |
| a substance used for energy that comes from the remains of organisms that lived about 300 million years ago | fossil fuel |
| A timeline of the history of Earth using the layers of earth. | geologic time scale |
| Era known as The Age of Dinosaurs. | Mesozoic |
| Era when fossil fuels began to form | Paleozoic |
| Fossil that gives a clue about a living thing’s activities | trace fossil |
| Ohio's state fossil and once lived under water | trilobite |
| Fossil formed from body parts of living things | body fossil |
| A space in rock that leaves the shape of a living thing | mold fossil |
| minerals that harden into the full shape of a mold | cast fossil |
| These are non-renewable energy sources | oil, natural gas, & coal |
| These are renewable energy sources | Wind, water, solar, nuclear, & geothermal |
| These are fossil fuels | oil, natural gas, & coal |
