Chapter 4-Views of Earth's Past
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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| Fossils | Traces or remains of living things of living things from long ago
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| Original Remains | Fossils that are the actual bodies or body parts of organisms
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| Ice Core | A tubular sample that shows the layers of snow and ice that have built up over thousands of years
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| Relative Age | The age of an event or object in relation to other events or objects
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| Index Fossils | Fossils of organisms that were common, that lived in many areas, and that existed only during specific spans of time
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| Absolute Age | The actual age of an event or object
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| Half-Life | The length of time it takes for half of the atoms in a sample of a radioactive element to change from an unstable form into another form
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| Uniformitarianism | The idea that Earth is an always changing place and that the same forces of change at work today were at work in the past
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| Geologic Time Scale | A chart that divides history into intervals or time defined by major events or changes on Earth
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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.
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.
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:
nicholas.surovi
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