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Science Inv. #4
science investigation vocabulary and questions
question/term | answer/definition |
---|---|
vocab- crossbedding | thin layers at different angles |
vocab- fossil | any evidence of past life that gets preserved in Earth's crust |
vocab- index fossil #1 | the fossil of something that was alive during a certain time period used to tell how old the rock is |
vocab- UNconformity | a gap in the geological record during when either no rocks were deposited or existing rocks eroded |
vocab- Index Fossil #2 | a fossil used to match different rock layer. |
vocab- Stratigraphy | science of how layered rocks relate to time |
question- What rock layer is the oldest? top or bottom. | Bottom |
question- what rock layer is the youngest? top or bottom. | Top |
Question- Say the time periods from largest to smallest. Era,Eon,Period. | Eon, Era,Period. |
Note: Layers of the SAME AGE have the same type of fossils. THESE FOSSILS ONLY: | ~lived for a short oeriod of time ~wide geographic range-are in a large area ~abundant-lots of them ~easy to identify |
Note- Low of fossil succession- | ~as animal adapt to there environment the fossil change |
Question- If we find the same kind of fossil in 2 locations then these rocks are? | The same age |
vocab- Trace Fossil | evidence of an organism is preserved (foot print) |
Question- All things DO NOT get FOSSILIZED. why? | 1: conditions must be just right 2: may not have been found yet |
Question- What system are the following apart of? Demain Kingdom Phylum Class Order Family Genus Speies | Classification System |
Response Sheet- A student's little brother said to her, "The fossils in the Grand Canyon are dead bodies of animals that washed up onto the rocks as the river passed by." If you were the student, what would you say to your brother? | That is not true, fossils are dead things that got compacted in between sediments, after a while they turned to rock with the imprint of the thing. Fossils can be made from plants, shells, animals and other things. |
Question- True or False. the imprint needs to be buried fast then decompressed. Then turn into a rock. Then the river eroded the rock exposing the fossil. | True |