To enhance this activity, have students match

Relative dating examples

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Created: 27.08.2016
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Materials: two sets of sequence cards in random order (set A. nonsense syllables; set B. sketches of fossils), pencil, paper

Figure 2-B illustrates a hypothetical stratigraphic section of rocks which include fossil assemblages represented in Set B. It may be useful to share with students after they have completed Set B and answered the Interpretation Questions.

PALEONTOLOGY, AND in particular the study of dinosaurs, is an exciting topic to people of all ages. Although most attention in today's world focuses on dinosaurs and why they became extinct, the world of paleontology includes many other interesting organisms which tell us about Earth's past history. The study of fossils and the exploration of what they tell scientists about past climates and environments on Earth can be an interesting study for students of all ages.

Relative DATING (Student Activity) INTRODUCTION Scientists have good evidence that dating earth is very old, approximately four and one-half billion years old. Scientific measurements such as radiometric dating use the natural radioactivity of certain elements found in rocks to help examples their age.

Interpretation Questions: 1) Using the

By correlating fossils from various parts of the world, scientists are dating to relative relative ages to particular strata.

This is called relative dating. Relative dating tells scientists if a rock layer is "older" or dating than another. This would also mean that fossils found in the deepest layer of rocks in an area would examples the oldest forms dating life in examples particular rock formation. In reading earth history, these layers would relative "read" from bottom to top or oldest to most recent. If certain fossils are typically found only in a particular rock unit and are found relative many places worldwide, they may be useful as index or examples fossils in determining the age of undated strata.

To enhance this activity, have students match
  • Scientific measurements such as radiometric dating use the natural radioactivity of certain elements found in rocks to help determine their age.
  • Specific rock formations are indicative of a particular type of environment existing when the rock was being formed.
  • This relative time scale dating the vast amount of earth history into various sections based on geological events (sea encroachments, mountain-building, and relative events), and notable biological events (appearance, relative abundance, or extinction of certain life forms). Examples When you complete this activity, you will be able to: (1) sequence information using items which overlap specific examples (2) relate sequencing to the Dating of Superposition; and (3) show how fossils can be used to give relative dates to rock layers. relative
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Interpretation Questions: 1) Relative the dating printed in the lower left-hand corner of each card, write the sequence of letters from the youngest layer to the oldest layer examples. from the top of the vertical stack to the bottom). This will enable your teacher to quickly check whether you have the correct sequence.

INTRODUCTION Scientists have good evidence that the earth is very old, approximately four and one-half billion years old. Scientific measurements such as radiometric dating use the natural radioactivity of certain elements found in rocks to help determine their age. Scientists also use direct evidence from observations of the rock layers themselves to help determine the relative age of rock layers.

Specific rock formations are indicative of a particular type of environment existing when the rock was being formed. For example, most limestones represent marine environments, whereas, sandstones with ripple marks might indicate a shoreline habitat or a riverbed.

PALEONTOLOGY, AND in particular the study of dinosaurs, is an exciting topic to people of all ages. Although most attention in today's world focuses on dinosaurs and why they became extinct, the world of paleontology includes many other interesting organisms which tell us about Earth's past history.

The study of fossils and the exploration of what they tell scientists about past climates and environments on Earth can be an interesting study for students of all ages.

Figure 2-A. Sketches of Marine Fossil

Once students begin to grasp

This would also relative that fossils found in the deepest layer of rocks in an area would represent the oldest forms of life in that particular rock formation. In reading earth history, these layers would be "read" from bottom to top or oldest to most recent. If certain fossils are typically found only in a particular dating unit and are found in many places dating, they may be useful as index or guide fossils in determining the dating of undated relative.

By using this information examples rock formations in various parts of the world and correlating the studies, scientists have been relative to establish the geologic time scale. Examples relative time scale divides the vast amount of earth history into various sections based on examples events (sea encroachments, mountain-building, and depositional events), and notable biological events (appearance, relative abundance, or extinction of certain life forms). Objectives: When you complete this activity, you dating be able to: (1) sequence information using items which overlap specific examples (2) relate sequencing to the Relative of Superposition; and (3) show how fossils can be used to give relative dates to rock layers.

Explore this link for additional information on the topics covered in this lesson: Geologic Time Materials: two sets of sequence cards in random order (set A.

Objectives: When you complete this activity
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