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Absolute dating rock layers — Science Learning Hub

Computer Science - Technology. Art History. Asian Studies. By correlating fossils from various parts of the world, scientists are able to give relative ages to particular strata. Critical Thinking. Balanced Literacy. Arrange them from oldest to youngest with the oldest layer on the bottom and the youngest on top.

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Teaching about Earth's history is a challenge for all teachers. Time factors of millions and billions of years is difficult even for adults to comprehend. However, "relative" dating or time can be an easy concept for students to learn. Once they are able to manipulate the cards into the correct sequence, they are asked to do a similar sequencing activity using fossil pictures printed on "rock layer" cards. Sequencing the rock layers will show students how paleontologists use fossils to give relative dates to rock strata. Once students begin to grasp "relative" dating, they can extend their knowledge of geologic time by exploring radiometric dating and developing a timeline of Earth's history. These major concepts are part of the Denver Earth Science Project's "Paleontology and Dinosaurs" module written for students in grades Extinction of species is common; most of the species that have lived on the earth no longer exist. The complete "Paleontology and Dinosaurs" module takes approximately four weeks to teach. The "Who's On First? 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. Return to top The study and comparison of exposed rock layers or strata in various parts of the earth led scientists in the early 19th century to propose that the rock layers could be correlated from place to place.

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As many us work on developing online courses we have to ask relative dating interactive activity how to implement lab activities. Listed below are some example lab activities that you might find useful as examples of others have used or even as lab activities to have your students do.

Please make sure when using these activities to acknowledge the authors of the page. If you know of other sources of activities that you find useful for online courses, we encourage you to fill out an activity submission form or share them with the community. There is also a growing collection of online lab https://aaronsjunk.xyz/social/speed-dating-dfw-area.php identified within the Teach the Earth collections.

Your Account. Finding Lab Activities Online As many us work on developing online courses we have to check this out ourselves how to implement lab activities. General Exploring Earth Investigations by McDougal Littell Publishing - numerous online activities that use animations, interactive graphics, and imagery to help students gather information gleaned from lecture content Geology Lab Videos by Tom Braziunas at North Seattle Community College - students can view short video demonstrations of some of the physical geology lab activities Reynolds, et al.

Exploring Geology, 2nd Edition. McGraw-Hill Publishing. ISBN: The instructor DVD comes equipped with some great Google Earth exercises that would work well for online labs. In addition, it also has investigations at the end of each chapter that could be used for online labs.

Plate Tectonics Plate tectonics laboratory using plate motions 3 exercises by Richard Harwood of Black Hawk College — interactive maps showing movement relative movement of plates, are multiple choice and self-checking. Jules Verne Voyager - This is an interactive map developed by UNAVCO where students can add earthquakes, stress axes, volcanoes, or plate boundaries to the entire world or by country. Minerals Online rock and mineral identification kit by Jonathan Evenick of the University of Tennessee — provides photographs and descriptions of various rocks and minerals.

Mineral identification and properties using photographs by Richard Harwood of Black Hawk College — students can identify minerals photographs based on mineral property choices.

Note: This site has been taken down. Contact us if you know of go here suitable replacement. Searchable mineral database by Amethyst Galleries, Inc. Descriptions of each mineral include physical properties, crystallography information, common uses, and chemical formulas as well as pictures. Mineral identification by Dave Jessey and Don Tarman through Cal State Pomona — students can use this site as a step-by-step tutorial to identify mineral sample.

Igneous Rocks Igneous rock article source using photographs by Richard Harwood of Black Hawk College — students can identify igneous rock photographs based on rock property choices, self-checking.

Igneous rock identification by Dave Jessey and Don Tarman through Cal State Pomona — students can use this site as a step-by-step tutorial to identify igneous rock samples.

Sedimentary Rocks Sedimentary rock identification using photographs by Richard Harwood of Black Hawk College — students can identify sedimentary rock photographs based on rock property choices, self-checking. Metamorphic Rocks Metamorphic rock identification using photographs by Richard Harwood of Black Hawk College — students can identify relative dating interactive activity rock photographs based on rock property choices, self-checking.

Metamorphic rock identification by Dave Jessey and Don Tarman through Cal State Pomona — students can use this site as a step-by-step relative dating interactive activity to identify metamorphic rock samples. Earthquakes World-Wide Earthquake Locator by the Edinburgh Earth Observatory: An interactive map where students can turn on and off features such as earthquakes, plate boundaries and names, faults, volcanoes, etc.

Volcanic materials identification using photographs by Richard Harwood of Black Hawk College — students can identify volcanic material photographs based on property choices, self-checking.

Volcanoes laboratory by Richard Harwood of Black Hawk College — a laboratory on volcanic processes, multiple choice and self-checking.

Deformation How do rocks respond to stress? In step 2, students can investigate the role of brittle vs ductile environments in relation to compressional, tensional, and shear stresses.

Once the parameters are selected, an animation plays to show the impact on rock layers. Learn Structural Geology by Rob Butler at the University of Leeds: Within the site you will find links so that students can learn about structural geology as well as go on virtual field trips.

Question assignment could be designed to go along with field trips. In addition, there is a virtual mapping project. Geologic Time Interpreting geologic sections through Athro, Limited — students can test their knowledge of principles of geologic time through animations. Radioactive dating game through PhET. Understand how decay and half-life work to enable radiometric dating to work. Play a game that tests https://aaronsjunk.xyz/articles/dating-online-debate.php ability to match the percentage of the dating element that remains to the age of the object.

Relative dating check this out by Richard Harwood of Black Hawk College — a laboratory on relative dating, multiple choice and self-checking. Radiometric dating laboratory by Richard Harwood of Black Hawk College — a laboratory on radiometric dating, multiple choice and self-checking.

Paleontology Online rock and fossil identification kit by University of Tennessee — provides photographs and descriptions of various rocks and fossils. Virtual museum of fossils by Valdosta State University. Topographic Maps Remote sensing laboratory sumy ukraine Richard Harwood of Black Hawk College — a laboratory on remote sensing, multiple choice and self-checking Examples of landforms on topographic maps by Susan Slaymaker - website includes numerous example images that can be used to develop an online lab activity link unavailable.

Topographic map examples which illustrate symbols commonly used on maps for cultural and natural features by Susan Slaymaker - website includes numerous example images that can be used to develop an online lab activity. Examples of topographic maps'] selected to illustrate common geologic processes, cultural features and topographic map symbols by Susan Slaymaker — website includes numerous example images that can be used to develop an online lab activity.

Groundwater How does groundwater move through the ground? Streams Virtual River through Virtual Courseware. Students learn about river processes in these two activities: River Discharge and River Flooding. Coasts How do storms affect coastlines? See topographic maps above for links to landform maps. Deserts What controls the motion of sand in sand dunes? Glaciers Glaciers simulation through PhET. Students can adjust mountain snowfall and temperature to see the glacier grow and shrink.

Use scientific tools to measure thickness, velocity and glacial budget.

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