18: Lab: Dating the Fossil Record
Log in to PBS LearningMedia and unlock tons of features that will help you bring your classroom scisnce life:. Create an account and rrecord unlock tons of features that will help you bring your gay meetup derry to life:. Overview The next three lessons help students understand how scientists find evidence of evolution and piece together the history of life.
In this lesson, students learn about the fossil record, the primary form of evidence. The lesson begins with an overview of the fossil formation process, then covers the evolution of land-dwelling animals from fish, and finally looks at how some mammals whales ended up back in the water. Have your class watch the Becoming a Fossil video and read the backgrounder. Discuss the following questions with your class:. Have your students watch the Radiometric Dating video and answdrs notes.
Then discuss in class the process of radiometric dating. Have students visit Record of Time Web site for more information on dating methods. Then divide the class into four life science dating the fossil record activity answers and assign each group one of the following topics: Have each group collect information on their assigned topic from either Record of Time Web site or another source and make a worksheet for their classmates.
The next day, ask the groups to exchange worksheets and complete them for homework. On the third day, discuss the results in class. Have the class read the interview Mike Novacek: Fossils in the Gobi. This interview will give them a good sense of what it's like to be a paleontologist. It shows how an individual scientist contributes to the fossil record and our understanding of evolution. Have students watch the Fish with Fingers video and read the backgrounder.
Discuss the following questions life science dating the fossil record activity answers class:. Ask students to read the interview with Ted Daeschler and Neil Shubin called Ted Daeschler wcience Neil Shubin: Then have them draw a line down the center of a sheet of paper. Life science dating the fossil record activity answers the left column have them list examples of types of fossil structures the scientists found.
In the right column have them explain what the scientists learned from this evidence. Show the Evolving Ideas: How Do We Know Evolution Happens? Ask students what types of evidence are used to learn about evolution fossil, molecular, chemical, anatomicaland write the list on the board. Discuss what each term means. Then discuss the following questions with your class:. Prepare a vertical classroom timeline of the Cenozoic era on paper. Make life science dating the fossil record activity answers timeline sixty-five inches tall, and label the top the present and the bottom 65 million years ago Mya.
Label every million years, with one inch equal to one million years My. Highlight the Eocene epoch Mya. Pass out copies of the Whales in the Making handout and the Whale Evolution Data Table Worksheet PDF worksheet. Have students work in teams of two. Ask them to cut out the six fossil boxes from the handout and gather the data about each fossil from resources in the Evolution Library, the school library, and the Web. Ask each team of two to prepare an Eocene epoch timeline on paper, using the same scale as the classroom model one inch equals one million years.
Their timelines should be twenty-one inches long, with each million years labeled. Have teams mount fossil boxes 1 and 2 from the handout at the proper locations on their timelines. Point out the large gap fosdil these two fossils. Then have students add the remaining fossils in order by date of discovery. Have students enter the invitation code on the student site: Assign this item to a previously created class or create a new class now.
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Home Favorites Assignments Folders Classes Profile About. About About Products Community Events Press Help Log In Create a free account. The Fossil Evidence for Evolution Students learn about the fossil record, one form of evidence for evolution. Lesson Summary Overview The next three lessons help fossill understand how scientists find evidence of evolution and piece together the history of life. Fossils in the Gobi HTML Document Fish with Fingers QuickTime Video Ted Daeschler and Neil Shubin: Early Tetrapod Fossils HTML Document Evolving Ideas: Before the Lesson Make copies of Whales in the Making handout and the Whale Evolution Data Table Worksheet PDF worksheet After the Lesson Discuss these general questions about fossil evidence: What are some key examples of fossil evidence that support the theory of evolution?
Why are fossils so rare, and why is it difficult to find an evolutionary trail of fossil species leading from a common ancestor? What questions remain unanswered by relying life science dating the fossil record activity answers on the fossil record? The Datting Part I: Discuss the dafing questions with your class: