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Java Games: Flashcards, matching, concentration, and word search. |
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Geologic History
Vocabulary review
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| A | B |
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| relative age | 1 |
| absolute age | age in years |
| Precambrian | oldest time period, earth began |
| Paleozoic Era | age of the reptiles |
| Mesozoic Era | age of dinosaurs |
| Cenozoic Era | age of the mammals |
| amber | hardened tree sap |
| mold | 2 |
| cast | 3 |
| fossil | 4 |
| index fossil | 5 |
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