8th grade mr. Hardy
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Eon | Longest subdivision in the geologic time scale that is based on the abundance of certain types of fossils and is subdivided into eras
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| Epoch | Next smaller division of geologic time scale is subdivided into periods is characterized by differences I life forms that may very regionally
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| Era | Second longest division in geologic time is subdivided into periods and is based on major worldwide changes in types of fossils
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| Geologic time scale | Divisions of earths history into time units based largely on the types of life forms that lived only during certain periods.
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| Natural selection | Process by which organisms that are suited to a particular environment are better able to survive and reproduce then organisms that are not
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| Organic evolution | Change of organism over geologic time
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| Pangea | Large ancient land mass that was composed of all the continents joined together
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| Period | Third longest division of geologic time is subdivided into epochs and is characterized by the types of life that existed worldwide
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| Species | Group of organism that reproduces only with other members of their own group
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| Trilobite | Organism with a three-lobed exoskeleton that was abundant in Paleozoic oceans and is considered to be an index fossil
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
asimien907
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