Dates & Events Test I
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| 13.7 billion years ago | Origin of the Universe (Big Bang Theory)
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| 4.6 billion years ago | Origin of the Earth (Solar Nebula Theory) based on the age of asteroids
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| 4.4 billion years ago | first surface water on Earth
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| 4.2 billion years ago | oldest known rocks (pieces of Zircon; inclusions inside other rocks) had to be water to move rocks
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| 4.0 billion years ago | oldest known rock group: Acasta Gneiss in Canada
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| 3.8 billion years ago | oldest known documented life: Archeabacter
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| 2.1 billion years ago | Last significant Banded Iron Formations (BIFs) significance: no free oxygen in the Earth's atmosphere
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| 1.9 billion years ago | First evidence of a multi-celled organism on Earth: red algae
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| 1.8 billion years ago | First formation of coninental red beds on Earth. Significance: free oxygen in the atmosphere
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| 1.1 billion years ago | First supercontinent forms on Earth: Rodinia
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| 750 million years ago | Snowball Earth Theory: Earth is encased in a ball of ice. Spike in ancient marine phosphorus concentration (from 750-635 MYA) linked to emergence of complex life.
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| 650 million years ago | Second supercontinent forms: Pannotia
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| 620 million years ago | Significant emergence of marine multi-celled organisms appear on Earth: Ediacaran Fauna
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| 560 million years ago | Oldest skeletonized organizm: Coronacollin acula
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| 545 million years ago | Most major phylum (body plans) are present on Earth
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| 444 million years ago | First major mass extinction even on the face of the Earth. End of Ordovician Event
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| 359 million years ago | Second major mass extinction even on the face of the Earth. End Devonian Event
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| 251 million years ago | 3rd major mass extinction event on the face of the Earth (greatest known mass extinction event in the history of the Earth) End Permien Event. Third supercontinent forms: Pangea
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| 200 million years ago | Fourth major mass extinction event on the face of the Earth: End Triassic Event.
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| 65.5 million years ago | End of Cretaceous Event. Complete demise of the dinosaur.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
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