Objectives:
-
Explain what is paleontology.
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Discover how a paleontologist digs up fossils.
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Discover what tools a paleontologist uses.
Key Words: fossils, paleontology,
paleontologist
TimeLine: 1 ˝ - 2 class periods
Materials: toothpicks, paper plates or
napkins, chocolate chip cookies (Pepperidge Farm® Chocolate Chunk Cookies)
Procedures:
- Explain to the class that when dinosaur fossils
are discovered many people are involved in the extraction and
reassembling process to make a complete skeleton of the dinosaur. One of
the most important persons is a scientist called a paleontologist.
- Write the word “paleontologist” on
the board, and explain that a paleontologist is someone to studies the
fossils of prehistoric animals and plants.
- Explain to the class that fossils can be any trace
of a formerly living thing preserved in rock.
- Discuss with the class some reasons why people
might want to study prehistoric fossils?
- Discuss with the class some of the skills they
think a paleontologist needs in order to study prehistoric fossils.
- Discuss some of the obstacles and difficulties
paleontologist encounter in extracting dinosaur fossils. What kinds of
tools are needed?
- View a video on
Dinosaur Hunters and have student note the process of extracting
fossils.
- At the conclusion of the video, inform the class
that they are now going to experience first-hand the tedious task of
removing perfect fossils from stones.
- Give each student a toothpick, paper plate or
napkin, and a cookie. Remind them not to eat the cookie.
- Hold up one of the cookies to the class. Tell
them they are going to pretend that the cookie is a rock containing
several fossils (chocolate chips).
- Tell the class that their task is to use the
toothpick to separate chocolate chips from a cookie without breaking the
cookie.
- Have the students write a journal response as they
accomplish their extraction task.
- Discuss with the class their experiences.
- Have the students visit the suggested sites to
learn more about paleontologist and their tools.
Assessment: Journal Response
Extension Activity:
Sandbox excavation: Bury several dinosaur Lego sets
in zip-lock bags in the school’s playground. Divide the class into 3-4
teams. Give each team a section of the playground to excavate. Have each
team locate, assemble, and identify the dinosaur they discovered.
Dinosaur Hunters: Have the students write a biography
or create a multimedia presentation (PowerPoint / HyperStudio) on a famous
paleontologists in history.
Suggested Web Links:
Ask a Dinosaur Expert
Meet paleontologist and marine
archeologist Sue Hendrickson and read a transcript of her interview by
students.
Top Paleontologist
Biographies of various famous paleontologists
Dinosaur Eggs
Experience fossil hunting with National Geographic
Dinosaur Hunters
Interactive site by the Jurassic Institute on
Paleontology