Eons are divided into smaller units called eras. Eons are the largest spans of time in the geologic time scale.
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Grand canyon began forming 5 million years ago.
Geologic time scale worksheet answer key pdf. Some of the worksheets for this concept are work the geological time scale geologic time scale from the texas memorial museum geological timeline activity week 6 geological timeline geologic time scale work paleontology lesson its a matter of time dawn wagner. Review the key concepts related to the geologic time scale through these assessment resources. Students will use the geologic time scale as a resource to answer the questions about earth s history.
Explain the relationships among eons eras epochs and periods of the geologic time scale. Geologic time scale add to my workbooks 4 download file pdf embed in my website or blog add to google classroom. The earth is 4 6 billion years old.
3 1 precambrian time mesozoic era 4 2 paleozoic era cenozoic era 2. Eras are subdivided into periods. Worksheet answer key 1 geologic time scale activity answer key tobart de june 27th 2018 read and download geologic time scale activity answer key free ebooks in pdf format understanding earths deep past the geologic.
Put the following in order from oldest to most recent by writing a number in the blank beside each. There are 13 questions copy of a time scale and answer key. Worksheet 1 the geologic time scale expected results answer the questions in the spaces provided.
It is a worldwide scale developed by correlation of fossils from all around the world. Displaying top 8 worksheets found for geologic time scale. The geological time scale the ideas of superposition and evolution provide the basis of the geological time scale which was developed in a somewhat random fashion mostly in europe during the 19th century.
Students will explore extinctions periods eras glaciation and order of life on earth. Answer key to the geologic time scale worksheet 1. It is based the fossil record discussed above.
Thousands and millions of years are used on a geological time scale. You can study offline by printing the worksheet or. Geologic time is the chronology of the earth s formation changes development and existence.
The chinle formation in the painted desert began forming over 200 million years ago.
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