From fossils to geodes, students rock out 2010.02.24

Written by David Green.

By DAVID GREEN

Steve Tchozeski picked up a large object from a table and held it up for Morenci second grade students to see. It didn’t take students long to figure out they were looking at an enormous tooth.front.fossils.jpg

“This came from an animal that walked through your playground about 10,000 years ago,” said Mr. Tchozeski, from Great Lakes GeoScience.

It came from a mastodon skeleton that was found not too far from Morenci, he said, and he noted that mastodons covered quite a wide range in their search for food.

It just might have plodded through Morenci at one time.

Next Mr. Tchozeski showed students some common fossils found in Michigan such as coral—a marine organism that lives in clear, shallow, tropical oceans.

What does this tell you about Michigan’s past?

“This tells me that at one time Michigan was covered with a warm, tropical ocean,” Mr. Tchozeski said.

The coral had been imbedded in limestone collected from a quarry near Charlevoix, Mich. It was about 350 million years old.

Mr. Tchozeski told the young science students they would soon be given a small sack of Charlevoix limestone and a special scientific instrument to assist their collection of fossils—a toothbrush.

Anything they found—coral, brachiopods, sponges—they could keep to take home.

Mr. Tchozeski explained that scientists must use their knowledge of plants and animals to work as detectives to learn about the past.steve.tchozeski.jpg

He picked up an enormous footprint embedded in rock—the print of a three-toed dinosaur. A friend of his found a path of the footprints that extended nearly a mile. The raptors walked through mud which, over millions of years, became shale rock.

By comparing the prints to today’s lizards, his friend concluded the animals were walking. A running or jumping dinosaur would have left a much different footprint behind. Small prints were found in the center of the trail, with larger prints on the outside.

“The babies were in the middle and the older dinosaurs were on the outside,” Mr. Tchozeski said. “They were good parents.”

He wrapped up his examples of how scientists read fossils, then gave students their turn to become paleontologists for the day.

• Great Lakes Geoscience offers a variety of geological experiences for school students. In addition to the fossil program for the second grade, fourth grade students were given a quartz crystal dig; kindergarten students looked at geodes; first grade students studied minerals; and third graders learned about volcanoes.

  • Front.splash
    Water Fun—Carter Seitz and Colson Walter take a fast trip along a plastic sliding strip while water from a sprinkler provides the lubrication. The boys took a break from tie-dyeing last week at Morenci’s Summer Recreation Program to cool off in the water.
  • Front.starting
    BIKE-A-THON—Children in Morenci’s Summer Recreation Program brought their bikes last Tuesday to participate in a bike-a-thon. Riders await the start of the event at the elementary school before being led on a course through town by organizer Leonie Leahy.
  • Front.pokemon
    LATEST CRAZE—David Cortes (left) and Ty Kruse, along with Jerred Heselschwerdt (standing), consult their smartphones while engaging in the game of Pokémon Go. The virtual scavenger hunt comes to life when players are in the vicinity of gyms, such as Stair District Library, and PokéStops such as the fire station across the street. The boys had spent time Monday morning searching for Pokémon at Wakefield Park.
  • Front.drum
    on your mark, get set, drum!—Drew Joughin (black shirt), Maddox Joughin and Kaleea Braun took the front row last week when Angela Rettle and assistants led the Stair District Library Summer Reading Program kids in a session of cardio drumming. The sports and healthy living theme continued yesterday with a Mini Jamboree at Lake Hudson State Park arranged by the Michigan Department of Natural Resources. Next week’s program features the Flying Aces Frisbee show.
  • Girls.on.ride
    NADIYA YORK and Aniston Valentine take a spin on the Casino, one of the rides offered at Wakefield Park during Morenci’s Town and Country Festival. This year’s festival remained dry but with plenty of heat during the three-day run. Additional photographs are inside this week’s Observer.
  • Front.softball
    Angela Davis (2) and teammate Allison VanBrandt break into a jig after Morenci's softball team won its third consecutive regional title.
  • Front.art.park
    ART PARK—A design created by Poggemeyer Design Group shows a “pocket art park” in the green space south of the State Line Observer building. The proposal includes a 12-foot sculpture based on a design created by Morenci sixth grade student Klara Wesley through a school and library collaboration. A wooden band shell is located at the back of the lot. The Observer wall would be covered with a synthetic stucco material. City council members are considering ways to fund the estimated $125,000 project and perhaps tackling construction one step at a time.
  • Front.train
    WRECKAGE—Morenci Fire Department member Taylor Schisler walks past the smoking wreckage of a semi-truck tractor on the north side of the Norfolk and Southern Railroad tracks on Ranger Highway. The truck trailer was on the south side of the tracks
  • Funcolor
    LEONIE LEAHY was one of three local hair stylists who volunteered time Friday at the Morenci PTO Fun Night. Her customer, Aubrey Sandusky, looks up at her mother while her hair takes on a perfect match to her outfit. Leahy said she had a great time at the event—nothing but happy clients.
  • KayseInField
    IN THE FIELD—2004 Morenci graduate Kayse Onweller works in a test plot of wheat in Texas. She’s part of Bayer CropScience’s North American wheat breeding program based in Nebraska, where she completed post-graduate work in plant breeding and genetics.

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