Science 1
Terms
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- Fossil
- The preserved remains or traces of living things.
- Paleontoligists
- Paleontologists use the fossils they collect to determine what past life forms were like
- Sedimentary Rock
- A type of rock made by hardened sediment.
- Petrified Fossil
- Petrified fossils are fossils in which minerals replace all or part of an oganism.
- Mold
- A mold is a hollow area in sediment in the shape of an organism or part of an organism.
- Cast
- A cast is a copy of the shape of an oganism.
- Carbon Film
- Carbon film is an extremely thin coating of carbon on rock.
- Trace Fossil
- Trace fossils provide evidence of the activities of ancient organisms.
- Scientific Theory
- A scientific theory is a well-tested concept that explains a wide range of observations.
- Evolution
- Evolution is the gradual change of living organisms over long periods of time.
- Extinct
- A type of organism is extinct if it no longer exists and will never again exist.
- Fossil Record
- The fossil record provides evidence about the history of life on Earth.