Upload File

notes #5: fossils. i. how can scientists know what organisms were around long ago??? fossils are...

  • Home
  • Documents
  • Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived
14
Notes #5: Fossils

Upload: nathaniel-cameron

Post on 05-Jan-2016

218 views

Category:

Documents


1 download

Report

Tags:

TRANSCRIPT

Page 1: Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived

Notes #5: Fossils

Page 2: Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived

I. How can scientists know what organisms were around long ago???

Fossils are used to determine:

1.The kinds of organisms that lived in the past

2.The behavior of the organisms

3.Ancient climates

4.Ancient geography

Page 3: Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived

Most fossils are found in sedimentary rock

This rock is mainly

found at the bottom of lakes, streams, & oceans

II. Where are fossils?

Page 4: Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived

III. How do we know how old a fossil is?

1.Relative Dating- uses layers

of sediment

2. Radiometric dating-

Uses isotopes

Page 5: Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived

1. A trace fossil is the marking left by an animal and may

include a footprint, trail, and/or a burrow.

IV: What types of fossils have been found?

Page 6: Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived

2. Imprint fossil: A thin object, such

as a leaf, that falls into sediment can leave an imprint

when the sediment hardens

into rock.

Page 7: Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived

3. A mold forms when an

organism is buried in

sediment and then decays,

leaving an empty space.

Page 8: Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived

4. An amber-preserved fossil is when an entire

organism was quickly trapped in tree sap that

hardened

Page 9: Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived

5. Frozen Fossils: An entire organism was quickly trapped in ice.

Example – a mammoth trapped in glacial ice.

Page 10: Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived

SummaryWhat are the types of fossils and how do we know how old they are?

Page 11: Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived

Glossary Words

11.Relative dating –

Fossils found in lower layers are older than fossils found in top layers

Page 12: Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived

12. Radiometric dating

uses radioactive isotopes and their half life decay rate to get an exact age.

Page 13: Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived

4. Gradualism

Organisms evolve in a process of slow and constant change

Page 14: Notes #5: Fossils. I. How can scientists know what organisms were around long ago??? Fossils are used to determine: 1.The kinds of organisms that lived

5. Punctuated Equilibrium

There were short bursts of quick evolution


Fossils Objective: TSW understand that populations of organisms change over time

Unit 1: Fossils - Biology In A Boxbiologyinabox.utk.edu/wp-content/uploads/2017/02/Unit-1-Fossils-Workbook.pdfUnit 1: Fossils Introduction Fossils are the remains of organisms (biota)

Inside the Restless Earth Chapter 3 Section 4. A fossil of a preserved remains of once living organisms. Fossils give clues about organisms that lived

Quick-write What is a fossil?. Fossils Fossils are remains, or evidence, of living organisms that have been preserved over millions of years

Give me some proof! Evidence for Evolution. 1. Studies of Fossils What are Fossils? –Fossils are any trace of dead organisms

1.cdn.edl.iorock or is trapped in tar, ice, or sap fossils give evidence of past living organisms what organisms ate what organisms looked like what organisms lived how organisms moved

More Evidence of Evolution - Long Branch Public Schools · Fossils provide concrete evidence about organisms that lived on the planet in the past! Check out the Rock Layer Model 1

Trilobites - · PDF fileTrilobites ! Trilobites are small, hard-shelled animals that lived in ancient seas. Trilobites are considered to be index fossils. ! Index fossils lived over

Biology in a Boxbiologyinabox.utk.edu/.../Unit-1-Fossils-Powerpoint... · Living Fossils??? You may hear the term “living fossils” used to describe particular organisms. These

CBSE-XII-2017 EXAMINATION CBSE-X-2015 EXAMINATION...(c) Fossils: The remains of dead animals or plants which lived in the remote past are known as fossils. The fossils provide evidence

FOSSILS- Evidence from Once-living Organisms

Evolution Evidence and Patterns. 1.Fossils remains or traces of organisms that lived in the past Relative Dating only describes if a fossil is older

How Are Canals the Paleozoic Era Connected? · Formation of Fossils Fossils are the remains, imprints, or traces of prehistoric organisms. Fossils have helped scientists deter-mine

Ch 22 Descent with Modification Fossils- Relics or impressions of organisms from the past, usually found in sedimentary rock. Fossils- Relics or impressions

What is a fossil? Fossils give clues about organisms that lived long ago. They help to show that evolution has occurred. They also provide evidence about

A.Investigate fossils by observing authentic fossils or models of fossils or view information resources about fossils as evidence of organisms that lived

{ Evolution Evidence revisited. Fossils Fossils: Document patterns of evolution Provide physical evidence of changes in various groups of organisms Show

FOSSILS- Evidence from Once-living Organisms. Fossils found in SEDIMENTARY ROCKS The lower the sediment layer is, the older the fossils of the layer will

Earth’s Past Historysuperscienceteacher.weebly.com/uploads/2/2/6/1/...Fossils Tell a Story O Scientists can learn about what types of organisms lived long ago O Scientists can also

FOSSILS PRESERVED REMAINS OR TRACES OF AN ORGANISM THAT LIVED IN THE PAST

Central Dauphin School District / Overview...300 mya Fossils can be seen in sedimentary rocks of each past age. These are some of the important organisms that lived on the continents

Fossil Kit Laboratory Investigation 1: How Fossils Form · • Fossils are the tangible remains of ancient organisms found in the rock record. The simplest definition is that fossils

Chapters 23 and 24 2013. The most numerous organisms on earth Earliest fossils 3.5 Billion years old Lived before other life evolved. Two major domains:

Inside Our Earth › NCERTS › l › gess202.pdf · These rocks may also contain fossils of plants, animals and other micro-organisms that once lived on them. Igneous and sedimentary

Evidence From Fossils Fossils are traces or remains of dead organisms that have been preserved by natural processes. Fossils can be formed when organisms

Chapter 13 Introduction How Populations Evolvestaff.bbhcsd.org/gardnere/files/2013/01/Chapter-13-Student-Notes.pdf · Fossils are the imprints or remains of organisms that lived in

Fossils & The Geologic Time Scale. Fossils Preserved remains or traces of an organism that lived in the past. Fossils are formed when organisms die and

Scanned with CamScanner...Fossils are the remains, such as bones and teeth, of organisms that lived long ago. Artifacts are human-made objects, such as stone tools. These items provide

Fossils. What are Fossils? Fossils are the remains of plants or animals that lived a long time ago, or any evidence of their existence

Fossils Fossils provide biased view of biota Fossils provide biased view of biota Not all organisms are preserved Not all organisms are preserved Rare

From: GeorgiasFossils.com An Introduction to Georgia’s Fossils Fossils as Evidence of Organisms That Lived Long Ago

YES…an example: cockroaches Scientists can infer the structure of ancient organisms. Fossils show that organisms that lived in the past are very different

Evolution and Fossils. Fossils: Fossil: the preserved or mineralized remain or imprint of an organism that lived long ago

10-1 Fossils What is a fossil? Fossils are the preserved remains or traces of living things How do fossils form? Fossils form when organisms die and are

FOSSILS. Fossils remains or imprints of an organism that lived long ago remains or imprints of an organism that lived long ago Formed 5 ways …. Formed