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Earth Science: Earths Geologic Timeline - Homeschool Den - Free Printable

Earth Science: Earths Geologic Timeline - Homeschool Den

Educational worksheet: Earth Science: Earths Geologic Timeline - Homeschool Den. Download and print for classroom or home learning activities.

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Show Answer Key & Explanations Step-by-step solution for: Earth Science: Earths Geologic Timeline - Homeschool Den
Based on the provided image, the task is to match each organism listed on the sticky notes to its corresponding geologic period as defined in the "Earth's Geologic Timeline" table. The solution involves cross-referencing the list of organisms with the life forms listed in each period of the timeline.

Here is the complete matching solution:

* Bacteria: Archean Eon (4 billion to 2.5 billion years ago)
* Green Algae: Proterozoic Eon (2.5 billion to 541 million years ago)
* Jellyfish: Phanerozoic Eon, Paleozoic Era (541-0 million years ago)
* Trilobites: Phanerozoic Eon, Paleozoic Era (541-0 million years ago)
* First Vertebrates: Phanerozoic Eon, Paleozoic Era (541-0 million years ago)
* Sharks: Phanerozoic Eon, Paleozoic Era (541-0 million years ago)
* Spiders: Phanerozoic Eon, Paleozoic Era (541-0 million years ago)
* Reptiles: Phanerozoic Eon, Mesozoic Era (252.17 - 66 million years ago)
* Earthworms: Phanerozoic Eon, Paleozoic Era (541-0 million years ago)
* Pangaea Forms: Phanerozoic Eon, Mesozoic Era (252.17 - 66 million years ago)
* First Mammals: Phanerozoic Eon, Mesozoic Era (252.17 - 66 million years ago)
* First Flowering Plants: Phanerozoic Eon, Mesozoic Era (252.17 - 66 million years ago)
* Ants: Phanerozoic Eon, Cenozoic Era (66 - 0 million years ago)
* Triceratops: Phanerozoic Eon, Mesozoic Era (252.17 - 66 million years ago)
* Camel: Phanerozoic Eon, Cenozoic Era (66 - 0 million years ago)
* Grass: Phanerozoic Eon, Cenozoic Era (66 - 0 million years ago)
* People: Phanerozoic Eon, Cenozoic Era (66 - 0 million years ago)

In summary, the organisms are grouped into three main eras:
1. Paleozoic Era: Bacteria, Green Algae, Jellyfish, Trilobites, First Vertebrates, Sharks, Spiders, Earthworms.
2. Mesozoic Era: Reptiles, Pangaea Forms, First Mammals, First Flowering Plants, Triceratops.
3. Cenozoic Era: Ants, Camel, Grass, People.
Parent Tip: Review the logic above to help your child master the concept of earth history worksheet.
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