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Earth's History test
Science Earth's history test
| Question | Answer |
|---|---|
| Name of the time period when the Earth's atmosphere was formed? | Pre Cambrian |
| What would preserve an entire wooly mammoth | Ice |
| Tell that a rock is older than one part (extrusion) but younger than another part of the rock | Relative age of a rock |
| an organism that would be found in amber | insect |
| states that the oldest rock layer is found at the bottom and the youngest at the top | Law of superposition |
| States that all rock layers are laid down flat | The law original horizontality |
| What is a trace fossil? | it provides evidence of activities of ancient organism. Ex - footprint, burrows, tail trails) |
| Fossils that are made out of minerals that have Turned to stone | petrified |
| 3 things that organisms can be preserved in? | amber, ice, tar |
| Name of the era of earth's history that we live in now. | cenozoic |
| What is the effect of climate change? | it can kill organisms? |
| Break in the earth's crust along which rocks move | fault |
| History of life on earth on a calendar | geologic time scale |
| Magma found within a rock layer | INtrusion |
| Magma that flows onto the surface of a rock layer | EXtrusion |
| fossils of widely distributed organisms that lived only for a short period of time | index fossils |
| rock layers with a wavy line at the top (worn away area on top) | erosion |
| Process by which all living things have changed over long periods of time to adapt to the enviorment | Evolution |
| Intrusions are younger or older than the rock they are found in? | younger |
| mold that is filled in the hardened minerals is called...(copy of the shape of an organism) | cast |
| Describes an organism that no longer exists on earth | extinct |
| preserved remain or traces of an organism | fossil |
| Is the youngest layer of rock on top or bottom? | Top |
| where are most fossils found | sedimentary rock |
| what preserves an entire organism and prevents it from decaying? | tar |
| How can humans cause extinction? | over hunting, pollution, killing plants. deforestatation |
| hardened resin or sap of evergreen trees | amber |
| a hollow area of sediment in the shape of an organism | mold |
| a rock layer is 250 million years old. This is the ------------ of the rock | absolute age |
| occurs in rock layers when unequal forces within the earth pushes up in one area | tilting |
| Earth's time scale date back this far | 4.6 billion years ago |
| most important step for an organsim to become a fossil | It must be buried in sediment |
| Parts of an organism are most likely to be preserved as a fossil | bones and shells |
| important even that happened 2.5 billion years ago when some organisms began using photosynthesis to make food | The earth's atmosphere was formed |
Created by:
jennwdw
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