Timeline of Planet Earth

1 Million 1, 000,000 A million seconds = 12 days. A million minutes = 1 year, 329 days, 10 hours and 40 minutes. A million hours ago it was 1885 It would take 23 days without sleeping to count to a million. See video on You Tube or United Streaming explaining a million and a billion….

1 Billion 1,000,000,000 A billion seconds = 31 years. A billion hours ago homo sapiens had not evolved. A billion kids on each others shoulders would stretch past the moon. If you counted from one to one billion, you would be counting for 95 years. One thousand million, is a billion.

The Earth is 4.6 Billion years old.

Directions Organize into groups of 2-4 people. Gather a meter stick and roll of adding machine tape. Measure carefully 5 meters of adding machine tape from the roll and cut it off. Measure 20 cm from one end, draw a line across and label the line “Today”. Add group member names and hour to that end of the roll, closest to the far end.

Directions Measure and mark your timeline in 1 meter increments/1 billion year increments ~ starting at the today line. Label each 1 meter as 1 billion years. (Be precise.) Scale: 1 millimeter =1 million years. 1 meter = 1 billion years. End of day 1

Time Divisions Earth Time is arranged into Eon’s, Era’s & Periods. Please measure and label them on your timeline. Color each Period a different color, and each Era a different color as well. Skip the color coding of the Eon’s. Remember that an Era crosses over several periods so draw them in with pencil before coloring. Day 2

Adding Events Now that your Eras & Periods are labeled and colored, begin adding events into your timeline. Attach the pieces somehow to the timeline. Attach to the front? Attach as flip in from the sides with an x showing specifically where it belongs. Measure from the today line, because every thing is measured in m.y.a. or millions of years ago. Remember Your Scale: Each millimeter =1 million years. Each meter = 1 billion years. Day 3

Making Sense of It All Once your Events are added, please complete the sheet titled, “Geologic Time Line” (from the packet). Discuss the Poster National Geographic Interactive Timeline: http://science.nationalgeographic.com/science/prehistoric-world/prehistoric-time-line/ You Tube (May be watched while completing.) Earth: The Making of a Planet http://www.youtube.com/watch?v=e1-F4lxJPo0&list=PL70CAF80E5B6E904D&index=14&feature=plpp_video Day 4 (half movie)

Post Tests Complete the Post Assignment “Dig in and See What You Know” Complete the Post Test (on the same sheet as the PreTest. Day 5 (end movie)

Clickers 1. How many millions are there in a billion? 10 100 1,000 10,000

Clickers 2. How long is 1 billion years on your timeline? 1 millimeter 1 centimeter 1 meter 10 meters

Clickers 3. How many years does 100 cm represent on your timeline of planet Earth? 1 million years 10 million years 1 billion years 10 billion years

Clickers 4. How many years would 1 cm represent on your timeline of planet Earth? 1 million years 10 million years 100 million years 1 billion years

Clickers 5. Which time period is the longest? An Eon An Era A Period

Clickers 6. Which time period is the shortest? An Eon An Era A Period

Clickers 7. Which Era of earth history is the longest? a. Cenozoic b. Mesozoic c. Paleozoic d. Precambrian

Clickers 8. How old is Earth? 4.6 million years old 4.6 billion years old 4.6 years old 46 years old

Clickers 9. What Era do we now live in? Quarternary Paleozoic Mesozoic Cenozoic

Clickers 10. What Period do we now live in? Quarternary Paleozoic Tertiary Cenozoic

Clickers 11. In what period do we find homo sapiens? Quarternary Paleozoic Tertiary Cenozoic

Clickers 12. Did ancient cavemen ever hunt dinosaurs? Yes No

Clickers 13. What Era is known as the “Age of Dinosaurs/Reptiles?” Precambrian Cambrian Quarternary Mesozoic

Clickers 14. What was the first life form to evolve on planet Earth? Humans Bacteria Sponges Plants

Clickers 15. A geologic era is generally marked by? A mass extinction An ice age Pangaea breaking into continents A new species evolving

Clickers 16. On the geologic time scale, eras are divided into. Epochs Indexes Periods Relative dates

Clickers 17. The Mesozoic era is often called the ________________. a. Age of Mammals Age of Dinosaurs Age of Amphibians Age of Fishes

Clickers 18. Comparing the age of one rock to the other rocks that are found around it is called. Absolute dating Relative dating Carbon dating Online dating

Clickers 19. Fossil evidence exists showing that various organisms once occurred on landmasses that are now far apart suggests that The organisms were really good swimmers. The landmasses were once together, and have moved. Similar organisms coincidentally evolved in very different areas Volcanic rock has transported those fossils to very different parts of the world.

Clickers 20. Most fossils are found in ______________ rock. igneous cemetery sedimentary metamorphic

Music Video’s Darwins Revolution http://www.youtube.com/watch?v=UuZTqLW_MN4&feature=related Symphony of Science- Greatest Show on Earth http://www.youtube.com/watch?feature=player_embedded&v=wxDOpAM2FrQ Unbroken Thread http://www.youtube.com/watch?v=hOLAGYmUQV0&feature=player_embedded

Post Test

Clickers 1. How old is Earth? 4.6 million years old 4.6 billion years old 4.6 years old 46 years old

Clickers 2. What Era do we now live in? Quarternary Paleozoic Mesozoic Cenozoic

Clickers 3. What Period do we now live in? Quarternary Paleozoic Mesozoic Cenozoic

Clickers 4. What Era is known as the “Age of Dinosaurs/Reptiles?” Precambrian Cambrian Quarternary Mesozoic

Clickers 5. What was the first life form to evolve on planet Earth? Humans Bacteria Sponges Plants

Clickers 6. A geologic era is generally marked by? A mass extinction An ice age Pangaea breaking into continents A new species evolving

Clickers 7. On the geologic time scale, eras are divided into. Epochs Indexes Periods Relative dates

Clickers 8. Comparing the age of one rock to the other rocks that are found around it is called. Absolute dating Relative dating Carbon dating Online dating

Clickers 9. Fossil evidence exists showing that various organisms once occurred on landmasses that are now far apart suggests that The organisms were really good swimmers. The landmasses were once together, and have moved. Similar organisms coincidentally evolved in very different areas Volcanic rock has transported those fossils to very different parts of the world.

Clickers 10. Which Era of earth history is the longest? a. Cenozoic b. Mesozoic c. Paleozoic d. Precambrian

Clickers 11. Did ancient cavemen ever hunt dinosaurs? Yes No