| #1 | To determine the Absolute age of rocks scientist use | What is Radioactive Dating? |
| #2 | Most fossils form when organism die and are buried in | What is sediment? |
| #3 | Index Fossils are useful because they can tell what type of age of the rock | What is Relative age? |
| #4 | Plants and animals first reached land during this Era | What is the Paleozoic Era? |
| #5 | When a mineral REPLACES all or parts of an organism it is called a | What is a Petrified Fossil? |
| #1 | This radioactive material is used to date rocks that lived up to about 50,000 years ago | What is Carbon-14? |
| #2 | A great number of different organisms evolved during this event | What is the Cambrian Explosion? |
| #3 | Magma that forces its way into rocks and hardens is called an | What is an Intrusion? |
| #4 | This era is often called the Age of the Reptile | What is the Mesozoic Era? |
| #5 | Pangaea formed at the END of what era? | What is the Paleozoic Era? |
| #1 | The process by which all the different kinds of living things have changed over long periods of time is called | What is Evolution? |
| #2 | Fossils are almost always found in what kind of rock? | What is Sedimentary Rock? |
| #3 | This law states that in horizontal layers of sedimentary rock the oldest rock is on the bottom | What is the Law of Superposition? |
| #4 | The earliest form of life appeared during | What is the Precambrian time? |
| #5 | Radioactive dating is used for this type of rock | What are Igneous rocks? |
| #1 | An animal with a backbone is called a | What are vertebrates? |
| #2 | On the geologice time scale, eras are divided into | What are periods? |
| #3 | Reptiles evolved from | What are Amphibians? |
| #4 | The time for half of the radioactive atoms to decay in a radioactive element | What is the Half-Life? |
| #5 | Humans first appeared at the END of what Era? | What is the Cenozoic Era? |
| #1 | The law of superposition is use to determine what type of age for rocks | What is Relative age? |
| #2 | This event occurred at the end of the Cretaceous period | What is a mass extinction? |
| #3 | A scientist who studies fossils is called an | What is a Paleontologist? |
| #4 | Animals without backbones are called | What are Invertebrates? |
| #5 | Dinosaurs ruled the Earth during what Era? | What is the Mesozoic Era? |
| Final Question | |
| This results when a rock layer is eroded away and a new layer forms on top of that | What is an Unconformity? |