A relative age dating activity key
WHO'S ON FIRST? RELATIVE DATING (Student Activity)
The letters on the other cards have no significance to the sequencing procedure and should be ignored at this time. Remember to include any erosion, faulting, tilting or folding! Extinction of species is common; most of the species that have lived on the earth no longer exist. Label the diagram with anticline and syncline.
A — next to bottom — superposition law. This will enable your teacher to quickly check whether you have the correct sequence. Try to find the oldest rock usually located near the bottom in the diagram below and work your way up.
When you complete this activity, you will be able to: Explore this link for additional information on the topics covered in this lesson: The easiest way to do relative age dating is to work from oldest to youngest. By correlating fossils from various parts of the world, scientists are able to give relative ages to particular strata. Principle of faunal succession: Dolerite dyke is just a type of rock that has formed vertically.
Primitive armored fish; extinct.
Multibranched relative of starfish; lives attached to the ocean bottom; some living species "sea lilies" NAME: Now, look for a card that has either a "T" or "C" written on it. E and C are igneous magma rising. Snails and relatives; many living species.
Shelled, amoeba-like organism NAME: How do you know? The complete "Paleontology and Dinosaurs" module takes approximately four weeks to teach. Scientists also use direct evidence from observations of the rock layers themselves to help determine the relative age of rock layers.
Faunal succession deals with fossils. Order old to young: Time factors of millions and billions of years is difficult even for adults to comprehend. All of the fossils represented would be found in sedimentary rocks of marine origin.
Sequence the remaining cards by using the same process. Clams and oysters; many living species NAME: Clams and oysters; many a relative age dating activity key species.
The picture is from an aerial view. This rock layer would be younger as indicated by the appearance of new fossils in the rock stratum. By matching partial sequences, the truly oldest layers with fossils can be worked out.
A cross section of a cliff. The order of events in the archaeological cross section shows that the oldest remains are Roman. Snails and relatives; many living species NAME: The Laws of Geology: If certain fossils are typically found only in a particular rock unit and are found in many places worldwide, they may be useful as index or guide fossils in determining the age of undated strata.
Teaching about Earth's history is a challenge for all teachers. DABEC old to young.
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