Dear Reader,
It’s officially public! Our oldest son is engaged to be married, and we couldn’t be happier. Certainly one of life’s biggest events, and a happy occasion all around. My husband and I are smiling from ear to ear.
See ya on the Net,
Barbara J. Feldman
“Surfing the Net with Kids”
https://www.surfnetkids.com
Geologic Time Scale
https://www.surfnetkids.com/resources/geologic-time-scale/
Geologic Time Scale Printable(** for Premium Members only)
https://www.surfnetkids.com/printables/files/printables-club/geologic-time-scale.pdf
The geologic time scale (GTS) is a system used by Earth scientists to organize the timing of events in Earth’s history. The largest defined unit is the supereon, which is composed of eons. Eons are divided into eras, which are further divided into periods, epochs and ages. Because there is a relationship between these time frames and the Earth’s layers of rock, there are corresponding terms (eonothem, erathem, system, series, and stage) that refer to the matching layers of rock.
Fossils Facts and Finds: Geologic Time Line
For middle-school students, this site introduces the GTS with a clickable chart. Most of the eras and periods are linked to detail pages for a deeper look. “As a reference tool, you can easily note the sequence of the various divisions and the length of each unit of time. Just like the layers of the earth, the top divisions of the chart represent the most recent time. Moving down the chart, you go further and further back in time.”
Geology.com: Geologic Time Scale
Unlike hours in a day, the time intervals on the GTS are not of equal length. “Instead the time intervals are variable in length. This is because geologic time is divided using significant events in the history of the Earth.” For example, the Permian and Triassic periods are divided by a “global extinction in which a large percentage of Earth’s plant and animal species were eliminated.” In addition to the smallish graph embedded on this page, there is a printable PDF of the GTS for downloading.
National Geographic: Prehistoric Time Line
This interactive, clickable timeline starts in Precambrian time. You can navigate through it with either the slider, the next/previous buttons, or by clicking on any event that catches your eye. “Earth was created between 4.5 and 4.6 billion years ago, when our solar system took shape around the sun. Born from exploding stars called supernovae, the new star gathered a swirling disk of dust and gases around it. As the sun heated up, this orbiting matter accumulated, and successively larger bodies collided to eventually create protoplanets with their own gravitational pull.”
… Click to continue to Geologic Time Scale
Printables Club Members Also Get …
Surfnetkids Printables Club Members also get the following printables to use in the classroom, the computer lab, the school library, or to send home with students:
Geologic Time Scale Printable
Geologic Time Scale Wikipedia Printable
Dinosaurs Printable
Plate Tectonics Printable
Earthquakes Printable
*** Are you curious? Get your own ten-day trial membership:
https://www.surfnetkids.com/printables-club.htm
Related Games
Geological Epochs Word Search
Geology Word Searches
Quote of the Week
“Does thou love life? Then do not squander time, for that’s the stuff life is made of.” ~~ Benjamin Franklin ~~ (January 17 1706 – April 17, 1790) American statesmen, author, printer, satirist. Visit the Benjamin Franklin page at Lightafire.com for more.
Surfing the Calendar
International Dinosaur Month October
Bullying Prevention Month October
Diversity Awareness Month October
National Book Month October
National Cyber Security Month October
National Dental Hygiene Month October
Adopt a Shelter Dog Month October
National Popcorn Month October
National Stamp Collecting Month October
Computer Learning Month October
National Metric Week Oct 10-16, 2016
Columbus Day Oct 10, 2016
Eleanor Roosevelt’s Birthday Oct 11, 1884
Yom Kippur Oct 12, 2016
Anniversary of Columbus Arrival in the New World Oct 12, 1492
Pledge of Allegiance created to celebrate 400 Years Since Columbus’ Arrival Oct 12, 1892
World Population Reaches 6 Billion Oct 12, 1999
Winnie-the-Pooh Published Oct 14, 1926
Martin Luther King Receives Nobel Prize Oct 14, 1964
Statue of Liberty Designated a National Monument Oct 15, 1924
Noah Webster’s Birthday, Celebrated Annually as Dictionary Day Oct 16, 1758
National Teen Driver Safety Week Oct 16-22, 2016
Marie Antoinette Beheaded Oct 16, 1793
National Chemistry Week Oct 16-22, 2016
U.S. Population Reaches 300 Million Oct 17, 2006