Unit 6 vocab
Help!
|
|
||||
|---|---|---|---|---|---|
| Fossil | A remain, imprint, or trace of prehistoric life
🗑
|
||||
| Index Fossil | Remains of once-living things from millions of years ago
🗑
|
||||
| Permineralized Remains | Fossils filled with minerals from groundwater
🗑
|
||||
| Molds and Casts | A type of body fossil
🗑
|
||||
| Original Remains | Still-existing fossils of prehistoric animals
🗑
|
||||
| Trace Fossils | Fossil consisting of imprint or track of an organism
🗑
|
||||
| Relative Age | Age of something compared with other things
🗑
|
||||
| Superposition | Order of sedimentary strata
🗑
|
||||
| Horizontality | The layers in the soil
🗑
|
||||
| Absolute Age | Age in years of a rock or other object
🗑
|
||||
| Half-life | The time taken for half the atoms in an isotope to decay
🗑
|
||||
| Isotopes | Amounts of the same elements with different numbers of neutrons
🗑
|
||||
| Radioactive Decay | Process where some isotopes break into smaller isotopes
🗑
|
||||
| Geological Time | The division in Earth's history
🗑
|
||||
| Eon | The longest subdivision in geological time
🗑
|
||||
| Era | Subdivided into periods
🗑
|
||||
| Period | Characterized by types of life that existed worldwide
🗑
|
||||
| Epoch | Characterized by differences in life-forms
🗑
|
||||
| Pangaea | The world when dinosaurs roamed the Earth
🗑
|
||||
| Trilobite | Organism with 3-lobed exoskeleton
🗑
|
||||
| Precambrian | Longest part of Earth's history
🗑
|
||||
| Mesozoic Era | The time of the dinosaurs
🗑
|
||||
| Cenozoic Era | The time of the first humans
🗑
|
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.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
3083436
Popular Earth Science sets