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Earth's History
Term | Definition |
---|---|
climate | This is the long term weather patterns in an area. |
ice cores | These are tubular samples that show the layers of ice and snow that have built up over thousands of years. |
tree rings | Theses are patterns of circles found on the cross-section of a tree. |
carbon film | This is when an organism decays and the carbon from its body forms a film on rocks |
petrified wood | This is a stone or fossil of a tree or plant |
cast | This is a solid model in the shape of an organism made of sediment that filled the mold. |
mold | This is a visible shape left after an organism has decayed away |
original remains | These are remains of organisms that are preserved and air tight. |
paleontologist | This is a scientist that studies fossils to understand Earth's history |
fossil | These are traces of remains of living things from long ago |