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[DOC File]Geologic Time Scale
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Geologic Time Periods. Which time period is the longest? Which time period is the least active (has the least going on)? Based on your chart, what criteria do we use for the beginning and end of a segment of time (i.e. era, period, etc). A rock contains fossils of a fish species that has been around since the …
eras and periods in history

[DOC File]Name
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Scientists have created a time line of Earth’s history. It is called the geologic time scale. The three most important divisions on the geologic time scale are eons, eras, and periods. Unlike time lines you have used in history class, the divisions on the geologic time scale are of unequal length.
different eras periods

[DOCX File]Geologic Age Dating
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Eras in turn consist of sections called periods, which contain smaller sections, known as epochs. Each section of the Geologic Column has been named for a geographic location or a geologic feature. All rocks, from anywhere on Earth, can be fit into their relative position in the Geologic Column, but there is no place on Earth where the entire ...
time ages periods and eras

[DOCX File]Paleolithic and Neolithic Compare/Contrast Chart
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Paleolithic and Neolithic Compare/Contrast Chart. Paleolithic Era. Began about 3 million years ago. Ended 10,000 years ago. Neolithic Era. Began in 8,000 BC. Food-hunting and gathering - bands searched in . home territory - farming and herding - developed agriculture - less time getting food. Shelter - open campsites
earth time periods and eras

[DOC File]Personal Time Scale
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Fill in the chart on the following page. Use each row to represent 6 months. 1. The first column will represent the eras of your life such as Baby, Child, and Teenager. 2. Those could be further divided into periods in the second column such as Crawlerean, Preschoolean, Toddlerean, Kindergarterian, etc.
geologic eras and periods

[DOC File]Qld Science Teachers
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The chart divided into eras and periods that shows the bacteria formation from non-living compounds 4000 million years ago to the development of complex organisms today is the: A. geological time scale. B. evolutionary time frame. C. organic scale. The English naturalist who wrote ‘Origin of Species’ was: A. Charles Darwin. B. Jean de Lamarck
difference between era and period

[DOCX File]CHAPTER 2
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Boundaries in the geologic time chart are based on _____. a. Absolute dates determined by radioisotope dating. b. Impacts by meteorites. c. Eras. d. Important changes in plant and animal life. e. Minor changes in plant and animal life. ... Which era has the periods named based on a tri-fold division? a. Mesozoic. b. Cenozoic. c. Cambrian. d ...
earth era chart

[DOC File]Making a Geologic Time Line
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These two eras take up 85% of the total length of geologic time. Because this would make the adding machine tape so long we are only going to include the last three eras, which marks the beginning of the abundant fossil record. Objectives: To compare and contrast relative lengths of the geologic eras, periods, and epochs. Materials:
era period of time

[DOC File]Personal Time Scale
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Fill in the chart on the following page. Use each row to represent 6 months. 1. The first column will represent the eras of your life such as Baby, Child, and Teenager. 2. Those could be further divided into periods such as Crawlerean, Preschoolean, Toddlerean, Kidergarterian, Elementarean, and MidSchooleran and represented in the second column.
eras and periods in history

[DOCX File]Home - Darlington Middle School
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(Eons, eras, periods, & epochs) What caused dinosaurs to become extinct? Complete the following chart. Precambrian Time. Paleozoic Era. Mesozoic Era. Cenozoic Era. 1. st. Appeared. Become Dominant. Use the Geologic Time Scale to answer the following questions. 17. What was the 2nd vertebrate to appear?
different eras periods

Chart of eras and periods