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Roger Weller, geology instructor

wellerr@cochise.edu

Education-Fossils
by Ann Chung
Physical Geology
Spring 2014
      

                      FOSSILS- MISS ANN’S THIRD GRADE CLASS
                    3 parts:  presentation, lesson plan, crossword puzzle

PRESENTATION
Definition

What they tell us

Five Kinds

Formation

Paleontologist

Review
 

  

Definition
 

A fossil is a living organism that died a long time ago and has been preserved in mineral form.

FOSSIL TURRITELLA    FOSSIL ALGAE

  

 

What They Tell Us
 

     Fossils tell us about plants and animals that lived a long time ago. Also, they tell us how the earth has changed over millions of years. Fossils help us to understand the different environments that once existed.
 

   

 

Five Kinds
 

There are five types of fossils. The five kinds are petrified fossils, molds and casts, carbon films, trace, and preserved remains.

 

Petrified Remains
 

     Petrified remains are organisms that turned to stone.
 

  

Molds and Casts
 

Mold—a hole shaped from an ancient plant or animal that has dissolved.

Cast—forms when dissolved minerals and sediment fill a mold.

 

 

Carbon Films
 

Carbon—when a living thing dies and is buried in sediment, every material breaks down except carbon. This thin layer of carbon forms a pattern.

 

Trace
 

Trace—like a footprint, it is a record of an organism’s movement over sand or mud.
 

 

Preserved Remains
 

Preserved remains are organisms that became stuck in resin, tar, or ice and whose bodies were preserved.
 

 

Formation


There are four steps of how fossils are formed.

Here are the four steps:

1.  Sediment

2.  Layers

3.  Movement

4.  Erosion

 

Sediment
 

Animals are buried by volcanic ash or silt right after dying.

 

 

Layers
 

More sediment layers form above the animal remains.

 

 Movement
 

The earth’s tectonic plates move.
 

 

 

Erosion
 

Erosion wears away rock layers, so scientists find the exposed remains of fossils.
 

 

 

Paleontologist
 

A paleontologist is a scientist who studies fossils.
 

 

 

Review
 

Please read the following questions and click on the correct answer.

 

What is a fossil?

a.   A rock from underground

b.  A living organism that has been preserved in mineral form

c.   A clothing brand
 

 

What five kinds of fossils did we learn about?

a.   Petrified remains, preserved remains, molds and casts, carbon films, and trace

b.  Volcanos and silt

c. Fish and dinosaurs

 

How many steps are there in fossil formation?

a.   Twelve

b.  Million

c. Four

 

LESSON PLAN

           

  

What is a Fossil?

Third grade

CONTENT OBJECTIVES:

·         Students will describe fossils as a record of past life forms.

·         Students will describe the five main categories of fossils: petrified remains, molds and casts, trace fossils, preserved remains, and carbon films. Students will describe how fossils are formed.   

ARIZONA COMMON CORE STANDARDS:

Strand 6: Earth and Space Science

·         Concept 1: Properties of Earth Materials

·         PO 4: Describe fossils as a record of past life forms.

·         PO 5: Describe how fossils are formed.

KEY VOCABULARY:

                     Fossils

                     Sediment

                     Layers

                     Movement

                     Erosion

                     Petrified

                     Molds and casts

                     Carbon films

                     Trace

                     Preserved remains

                     Paleontologist

MATERIALS:

·         Plastic bowel/cup

·         Playdough

·         Plaster

·         Water

·         Shells

·         Popsicle sticks

·         Plastic spoon

·         Black makers

·         PDF file

LESSON SEQUENCE:

First Step: Before we start the lesson, I will show student pictures of fossils and ask them some questions. Some of the questions I will ask are below:

·         Does anyone know what this is?

·         What is a fossil?

·         Does anyone know what a dinosaur is?

·         How do we know that dinosaurs existed?

Students will read the book, Fossils Tell of Long Ago by Aliki as a group aloud. We are going to discuss as we read the book. I will show students my own PowerPoint slides one through three. (The PowerPoint is attached.)  

Second Step: Students will then make their own fossils. The materials they will be using are plastic bowls, playdough, water, plaster, plastic cups, and plastic spoons. Students will follow these steps:

Description: http://4.bp.blogspot.com/-BEL25KyWcyA/TxHhmeh9XhI/AAAAAAAAAKI/BOFa1TtIruQ/s320/IMG_1066.JPG

Description: http://3.bp.blogspot.com/-pNx8XoTDqDA/TxHhudRJfKI/AAAAAAAAAKQ/vCNRZb1NRqI/s320/IMG_1067.JPG

 

Description: http://4.bp.blogspot.com/-Kx0t4fOGhOE/TxHh0YulEaI/AAAAAAAAAKY/DcWH9i6j0WE/s320/IMG_1068.JPG

Description: http://1.bp.blogspot.com/-C088OHPUOvA/TxHh6S7VDbI/AAAAAAAAAKg/27feAG5g18c/s320/IMG_1070.JPG

Description: http://1.bp.blogspot.com/-_mUeWE547XY/TxHiAWO2ZnI/AAAAAAAAAKo/M9oIzRS7VeI/s320/IMG_1071.JPG

Description: http://1.bp.blogspot.com/-OAMV6nI6hyg/TxHiFxvfAjI/AAAAAAAAAKw/ebdO_2WQahU/s320/IMG_1072.JPG

Description: http://4.bp.blogspot.com/-tsBePKfFog4/TxHiSCgUWLI/AAAAAAAAAK4/OpP4ey_FmYM/s320/IMG_1064.JPG

I got these ideas from: http://soaringthroughsecond.blogspot.com/2012/01/fossil-fun.html

 

Third Step: We will watch a YouTube video about fossils. Here is the link: http://www.youtube.com/watch?v=TVwPLWOo9TE. I will show my own PowerPoint slides four through fourteen which are about the five different kinds of fossils and how they are formed. (The PowerPoint is attached.) Students will draw the five different kinds of fossils and label them as I show the PowerPoint and we discuss the materials.

Last Step: I will assess my students about what they learned in science class by asking students questions on the board with multiple answers such as:

What is a fossil?

A. A rock from underground

B. A living organism that has been preserved in mineral form

C. A clothing brand

What five kinds of fossils did we learn about?

How many steps are there in fossil formation?  

We will discuss our choice of answers. We will go over vocabulary. Students will complete crossword puzzle that is attached.

Suggested Enrichment Activities:

http://www.ashleigh-educationjourney.com/2014/01/science-pictures-and-multiplication.html


FOSSIL CROSSWORD PUZZLE



 

 

What is a Fossil?

 

Complete the crossword below

 

1

 

2

 

3

 

4

 

5

 

6

 

7

8

9

10

 

 

11

 

12

 

Created on  TheTeachersCorner.net Crossword Maker

erosion  layers  fossils  preservedremains  movement  cast  paleontologist  trace mold  sedimentary  carbonfilms  petrifiedremains


 

 

Across

 

3. the earth's tectonic plates move

 

8. are organisms that became stuck in resin, tar, or ice and whose bodies were preserved

 

10.  more sediment layers form above the animal remains

 

11.  forms when dissolved minerals and sediment fill a mold

 

12.  living organism that died a long time ago and has been preserved in mineral form


 

Down

 

1.  organisms that turned to stone

 

2.  a hole shaped from an ancient plant or animal that has dissolved

 

4.  when a living thing dies and is buried in sediment, every material breaks down except carbon

 

5.  a person whose job it is to study fossils

 

6.  like a footprint, it is a record of an organism's movement over sand or mud

 

7.  a rock type in which you might find fossils

 

9.  wears away rock layers, so scientists find the exposed remains of fossils

 

Images Credit:

http://soaringthroughsecond.blogspot.com/2012/01/fossil-fun.html

http://burkemuseum.blogspot.com/2011/12/fossils-and-legos.html

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&ved=0CDgQFjAD&url=http%3A%2F%2Fteacher.scholastic.com%2Fscholasticnews%2Fmagazines%2Fscienceworld%2Fassets%2FSW-POWERPOINT- FOSSILS.ppt&ei=bOs6U7_RJMbgyQHFwoH4Cw&usg=AFQjCNE5ABLppI0X6GpoTa3thOQTgwBb-A

http://www.bbc.co.uk/nature/fossils/Trace_fossil

http://homepage.smc.edu/grippo_alessandro/fossil.html

http://skywalker.cochise.edu/wellerr/fossil/fossilL.htm3

http://woostergeologists.scotblogs.wooster.edu/2011/12/

http://miraimages.photoshelter.com/image/I0000WFlAVc6cGT8