DO NOW - PowerPoint PPT Presentation

Loading...

PPT – DO NOW PowerPoint presentation | free to download - id: 79b3db-OTNkZ



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

DO NOW

Description:

DO NOW Geologic Time DO NOW 1. Superposition C 2. Absolute dating B 3. Relative dating A 4. Geologic column D A. Finding if a rock layer is older or younger than the ... – PowerPoint PPT presentation

Number of Views:23
Avg rating:3.0/5.0
Slides: 7
Provided by: NANCYH166
Category:
Tags: now | films | thin

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: DO NOW


1
DO NOW
  • Geologic Time

2
DO NOW
  • 1. Superposition
  • C
  • 2. Absolute dating
  • B
  • 3. Relative dating
  • A
  • 4. Geologic column
  • D
  • A. Finding if a rock layer is older or younger
    than the layers around it.
  • B. Finding the exact age of an object using
    unstable atoms
  • C. The idea that younger rock lies above older
    rock.
  • D. Detailed series of rock layers of all known
    fossils and rock formations from around the world.

3
DO NOW
  • 1. Explain the four features of an index fossil.
  • Found worldwide
  • Abundant
  • Easily recognizable
  • Alive for only a short period of geologic time
  • 2. PURPOSE of an index fossil?
  • used to date the layer the index fossil is found
    in.
  • 3. What is the index fossil of the Paleozoic Era?
  • Trilobite

4
DO NOW
  • What do fossils show scientists?
  • 1. What Earth and its environment was like in the
    past.
  • 2. How Earth and its environment have changed
    over time.
  • 3. What organisms lived in the past.
  • 4. How organisms have changed with time.

5
DO NOW
  • 1. What is a trace fossil?
  • Give three examples
  • Footprints, burrows, droppings
  • 2. What is a body fossil?
  • Give three items that may become a body fossil
  • Bones, teeth, shells

6
DO NOW
  • A. When minerals replace all or part of an
    organisms tissues, such as bone or wood.
  • B. The trace or remains of an organism that lived
    long ago, most commonly preserved in sedimentary
    rock.
  • C. When animals are preserved in or close to
    their natural state as in amber, tar, or ice.
  • D. An impression or imprint of an organism in
    sediment which turns to rock.
  • E. A fossil that is used to establish the age of
    a rock layer
  • F. Formed when sediment fills an impression made
    by an organism and becomes rock.
  • G. Thin layer of carbon from the organism left
    behind in the rock.
  • 1. Cast fossil
  • F
  • 2. Mold fossil
  • D
  • 3. Petrified fossil
  • A
  • 4. Preserved remains
  • C
  • 5. Carbon films
  • G
  • 6. Fossil
  • B
  • 7. Index fossil
About PowerShow.com