Relative dating webquest

Correlation with them has helped geologists date many New Zealand rocks, including those containing dinosaurs.Bring relative dating principles to life with the activity Rock layers and relative dating.Different species of ammonites lived at different times within the Mesozoic, so identifying a fossil species can help narrow down when a rock was formed.Correlation can involve matching an undated rock with a dated one at another location.Lastly, we will investigate how geologists use the geologic time scale to divide Earth's history.wiki How is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. A Web Quest is a computer based teaching tool that allows students to work in groups or independently.Throughout the history of life, different organisms have appeared, flourished and become extinct.Many of these organisms have left their remains as fossils in sedimentary rocks.

In this unit, we will learn about how fossil evidence show that Earth's surface, environment and climate have changed over time.Some fossils, called index fossils, are particularly useful in correlating rocks.For a fossil to be a good index fossil, it needs to have lived during one specific time period, be easy to identify and have been abundant and found in many places. If you find ammonites in a rock in the South Island and also in a rock in the North Island, you can say that both rocks are Mesozoic.Relative dating is used to arrange geological events, and the rocks they leave behind, in a sequence.The method of reading the order is called stratigraphy (layers of rock are called strata).

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Try it risk-free Discover how geologists study the layers in sedimentary rock to establish relative age.

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