Fossils
Download
1 / 9

Fossils - PowerPoint PPT Presentation


  • 118 Views
  • Uploaded on

Fossils. Traces of the past……. What happened before . Fossils are traces of things that happened long ago Plants and animals can become fossils We have only discovered a small number of the plants and animals from the past Fossils are not the original, only a copy . Plants.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Fossils' - ronny


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Fossils l.jpg

Fossils

Traces of the past……


What happened before l.jpg
What happened before

  • Fossils are traces of things that happened long ago

  • Plants and animals can become fossils

  • We have only discovered a small number of the plants and animals from the past

  • Fossils are not the original, only a copy


Plants l.jpg
Plants

  • The most famous example of fossilized plants is petrified wood

  • Ferns, tree leaves, and other plants have been found, too


Animals l.jpg
Animals

  • The most famous fossils are of dinosaurs

  • There are also fossils of sea creatures and mammals

  • Sometimes many fossils are found in one place because of a flood, earthquake, or other disaster


How fossils are found l.jpg
How fossils are found

  • Fossils are often found by accident

  • Paleontologists and geologists use clues in the rocks to find good places to hunt for fossils

  • Excavating fossils is hard work, and must be done carefully


How are fossils made l.jpg
How are fossils made?

  • A fossil is made when a plant or animal is covered quickly with mud or ash

  • The organism’s tissues are replaced over a long period of time with minerals from the soil it was buried in

  • Fossils can be dated by the layer of rock they were found in, or by radiocarbon dating


Clues to the past l.jpg
Clues to the past

  • Many fossils give us an idea of what life was like long ago

  • Plants give clues about the diet of animals

  • Animals give clues about the availability of plants and the climate when they lived

  • Many clues fit together to make a more complete picture of what the world was like long ago


Can we ever really know l.jpg
Can we ever really know?

  • No matter how many clues we have, we can never really know what life was like long ago

  • We can make an educated guess, and fill in the gaps using what we know about life today

  • It’s fun to imagine what it was like when the dinosaurs lived. Try it next time you feel bored!


Slide9 l.jpg

This powerpoint was kindly donated to

www.worldofteaching.com

http://www.worldofteaching.com

Is home to well over a thousand powerpoints submitted by teachers. This a free site. Please visit and I hope it will help in your teaching