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Fossils
5.7D-Fossils
Term | Definition |
---|---|
Living Organism | Life form such as a plant or animal. |
Past | Time before now. |
Fossils | Naturally preserved parts or traces of living organisms from the past. |
Model | A ‐‐‐‐‐ can be a diagram, drawing, or structure, usually built to scale, that helps us understand and visualize ideas in science. |
Evidence | Proof, data, facts. |
Identify | To recognize. |
A forest environment | If many plant fossils are found, scientists can conclude that at one time the area was ‐‐‐‐‐. |
Environment | Surroundings in which an organism lives. |
Present | Modern day, now. |
An ocean environment | If many shell and fish fossils are found, scientists can conclude that at one time the area was ‐‐‐‐‐. |
Glaciers | _________ create U-shaped valleys. |
Rivers | __________ create V-shaped valleys. |
Delta | Formed when sediments are deposited where a river meets a lake or ocean. |
Canyon | Formed from fast moving water, creating a deep gorge with steep sides (cliffs). |
Erosion | Process that moves sediments from one place to another. (takes it) |
Deposition | When sediments are deposited. (dropped off) |
Cementation | Minerals stick sediments together like glue or cement. |
Weathering | The breaking down of rocks into smaller pieces called sediments. (breaks it) |
Compaction | When sediments are buried deep under layers, the pressure smashes them together in a process called ‐‐‐‐‐. |
Sedimentary | Fossils are found in ___________ rocks. |