Term
| How and when were igneous rocks formed? |
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Definition
they were formed from cooled magma, the earliest were formed 4.3 BYA and are located in northern quubec
rocks did exist before that but were recycled |
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Term
| Why are spreading zones important for dating rocks? |
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Definition
| the oldest rocks are located far from the spread zone near subduction zones |
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Term
| How and wen were sedimentary rocks formed? |
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Definition
| they were located from sedimentation in stable oceans which occured after bombardement around 3.8 billion years ago some are located in greenland |
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Term
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Definition
| sing celled organisms in groups or chains but can survive as individual cell |
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Term
| What is an example of a Micro fossil and wher cna we find them ? |
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Definition
| Stromatolites consits of photosynthetic bacteria dating as far back as 3.5 BYA some ar in saratoga springs! since these are complex life must ahve been around before them! |
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Term
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Definition
| multi cellular orgainsim but not unti phanarezoic 500 MYA |
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Term
| Are solar systems easy to create? |
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Definition
| Yes because this is based purely on physics and there are many all over the universe |
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Term
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Definition
| 7 complex organic moucules |
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Term
| describe complex organic molecules |
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Definition
| they are formed from simpler organic molecules |
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Term
| Describe the Miller - Urey Experiment? |
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Definition
| This was an experiment where a flask of the beleived to be early atmosphere was sparked with a current to create reaction they produced amino acids! however later investigation showed they had the wrong atmosphere so it is unlikely taht organic molecules were first produced from the atmosphere |
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Term
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Definition
It could not be the atmosphere
unlikely that it was the ocean surface due to light and heat
some could have come from meteolites because they have shown to have organic complex molecules
most likely deep sea vents water is heated and abosrbs minerals the ater rises and creates HCN and other simple organic molecules |
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Term
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Definition
| Clay could have been the template ont which complex organic molecules combined into DNA because both have chain like structures of repeated units |
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Term
| WHAT ARE THE THREE DOMAINS OF LIFE |
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Definition
ARCHAE AND BACTERIA
EUCARYA (HAS A NUCLEUS) |
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Term
| WHAT ARE HYPER-THERMOPHILES |
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Definition
| THESE ARE BACTERIA THAT EXIST ABOVE 170 DEGREES PROBABLY CLOSE TO SEA VENTS THEY COULD BE OUR ANCESTORS |
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