Relative dating lab sheets
This activity has students working as archaeologists.
Students, not their school, make the choice to write Optional exams.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.Concept 3, PO 1: Interpret data that show a variety of possible relationships Concept 4, PO 2: Produce graphs that communicate data Concept 4, PO 3: Communicate results clearly and logically Concept 4, PO 4: Support conclusions with logical scientific arguments Strand 6: Earth and Space Science Concept 3, PO 4: Interpret a geologic time scale.Concept 3, PO 5: Distinguish between relative and absolute geologic dating techniques.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.
You should be able to combine this physical evidence with your memories in order to divide your life story into a sequence of named chapters or phases arranged in relative time and bracketed by numerical dates in years.
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The complete "Paleontology and Dinosaurs" module takes approximately four weeks to teach. " activity is a 30-minute introduction to geologic time.
INTRODUCTION Scientists have good evidence that the earth is very old, approximately four and one-half billion years old.
To facilitate the activity, the teacher will provide some introduction to absolute dating principles through the Half Life of M&M Worksheet.