Fossil Finds

Fossil Finds
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Fifty years ago a paleontologist, Mike, was walking through a farm in Nebraska. In a spot where soil had been washed away by the rain, he noticed a bone he had never seen before. It was something he'd hoped to find for a long time.

Mike couldn’t believe his eyes….it was a small skull. He excitedly started brushing away the material that covered it, to see if there might be an entire skeleton.

Mike brought a team of scientists to dig through the hill. Slowly, they uncovered the rest of the skeleton that Mike had first found...it was a prehistoric baby rhinoceros!

Discuss:

Today, rhinoceros live in Africa, not North America. How do you think a rhino skull ended up on a farm in Nebraska?

Over the next eight years, the scientists kept digging on the same hill and uncovered more layers of prehistoric animals, including horses, camels, birds, and turtles.

Today, scientists are still digging and finding fossils!

Go to the next slide to check out a video of the fossil beds.

Video trouble?

Get a See-Think-Wonder chart to record your ideas.

THINK-PAIR-SHARE:

What do you observe about the fossils found at the site? What do you notice about the positions they are in? What do you notice about the types of animals that are there?

Record your answers in the SEE column of your chart.

THINK-PAIR-SHARE:

What do you think killed all of these animals? Why do you think it took so long for people to find the fossils?

Record your answers in the THINK column of your chart.

THINK-PAIR-SHARE:

What do you wonder about this fossil site?

Record your answers in the WONDER column of your chart.

Scientists use fossils to try to uncover the story of life on Earth millions of years ago. In today’s activity, you’ll start to uncover the story of why so many animals died and became fossils at the place that Mike Voorhies discovered in Nebraska. Today, it’s called the Ashfall Fossil Beds.

What killed all of these animals? When were they killed? Why did it take so long to discover them? How were their skeletons so perfectly preserved?

In today's activity, you'll begin to make your first explanation of what happened at the Ashfall Fossil beds. Throughout the Mysteries, you’ll collect new pieces of information to help you fully explain what happened to the animals.

You've completed the introduction to the anchor phenomenon!

Be sure each student has an "Ashfall Fossil Beds Evidence Chart" worksheet before you begin Mystery 1. They will use it in the Unit Connection after each Mystery.

Teach Mystery 1 next: Could a volcano pop up in your backyard?

Image & Video Credits

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Other
Ashfall Fossil Beds - Teleoceras female and calf by Image used under license from Alamy.com: Archive PL
Ashfall Fossil Beds State Historic Site, Nebraska by Image used with permission from: Lisa Kern
Ashfall Fossil Beds Teleoceras female and calf by Image used with permission and under public domain through Ammodramus
Ashfall beds rhino jaw by Image used with permission from: UNL
Ashfall fossil beds, NE by Image used with permission from: Bubblybabs L
Ashfalls by Image used with permission from: Discover North East Nebraska
Collection of Assorted Paintbrushes Isolated on a White Background by Image used under license from Shutterstock.com: Bryan Solomon
Mud texture by Image used under license from Shutterstock.com: Lightsprings
Rhino skull in sun by Image used under license from Shutterstock.com: Nora Marie
palentologist at work by Image used with permission from: news.unl.edu
Credits

Featured Reviews

“The inquiry element of this lesson kept my students very engaged!!!”
· Gladys · Teacher
“I liked the students having the ability to predict what could have caused the animals to become fossils.”
· Kaylie · Teacher
“The students were amazed learning about the journey of the fossils!”
· Phyllis · Teacher
“Only taught the first lesson, but students were engaged and I found it interesting. I appreciate starting with the Anchor...”
· Peter · Admin
“It really got the kids to think deeply about changes to land over time!”
· Molly · Teacher
“The "See, Think, Wonder" chart brought on a lot of wonderful conversations and excitement.”
· Lyndsay · Teacher
“Drawing and sequencing the events was the best part of the unit starter! So great to integrate the writing aspect of Science!”
· Natalie · Teacher
“This is a great way to start Birth of Rocks and tie it all together. The picture page was the best!”
· · Teacher
“The students were so interested!! The questions were just coming one after another!”
· Amy · Teacher
“Love the new starter lesson to tie all the lessons together. Great common thread throughout the lessons.”
· Kristen · Teacher
“I love the addition of the unit starter. It really got students in the mindset of asking questions. I love the See/Think/Wonder chart! We will use this all year!”
· Julie · Teacher
“The students got really involved in completing the sequence activity from 11 millions years ago working in small groups and sharing with the whole class. ”
· Patty · Teacher
“The fossil video was really exciting and the kids are excited to continue answering this question throughout the unit.”
· Colin · Teacher
“The best part was creating the student diagrams with their own ideas of what happened during the 11 million years.”
· Lynette · Teacher
“The kids had a lot of fun exploring the fossil bed.”
· Jared · Teacher
“I love the phenom included! Great piece to the lesson.”
· Tricia · Teacher

Activity Prep

Print Prep
Note: This lesson is part of this unit’s Anchor Layer. If you have the Anchor Layer turned on, we recommend teaching all lessons in the remainder of this unit in order.

The anchor phenomenon for this unit is the Ashfall Fossil Beds. Students generate observations and questions about the phenomenon and create an initial explanation to explain what killed the prehistoric animals, how their bones ended up underground, and what changes happened to the land that uncovered their fossils.
Preview activity
Ashfall Fossil Beds Evidence Chart worksheet 1 per student
Ashfall Fossil Beds Evidence Chart Teacher Key teacher-only resource 1 per class
Ashfall Fossil Beds Explanation worksheet 1 per student
Ashfall Fossil Beds Explanation Teacher Key teacher-only resource 1 per class
See-Think-Wonder worksheet 1 per student
The Birth of Rocks Teacher Guide teacher-only resource 1 per class
Prep Instructions

Before starting this lesson, review the unit Teacher Guide for an overview of The Birth of Rocks Anchor Layer.

In the Unit Starter, students are introduced to the unit anchor phenomenon, the Ashfall Fossil Beds site. In the activity, they create an initial explanation to explain what killed the prehistoric animals, how their bones ended up underground, and what changes happened to the land that uncovered their fossils. Students will gather new evidence after each Mystery in order to revise their explanation.

It is important to encourage students to recognize that even if they don't know the perfect answer yet, they are going to learn a lot throughout the unit and have an opportunity to change or add to their first explanation.

Step 1: Set up your classroom by creating a class "See-Think-Wonder" chart (the student version is linked below). We recommend using chart paper, or a space on your board that won't be erased since you will revisit it throughout the unit.

Step 2: Print out worksheets. Each student needs a:

Answer keys for the teacher: * Ashfall Fossil Beds Explanation Teacher Key * Ashfall Fossil Beds Evidence Chart Teacher Key

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Rocks Anchor Phenomenon: Fossil Finds

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