Embedded Files
What you should know by the end of this lesson:
What you should know by the end of this lesson:
The timeline of Earth's History
Earth. A story 4.5 billion years in the making
Earth. A story 4.5 billion years in the making
Digital Workbook Task and Paper Jotter Task:
Watch the video and take some notes.
Use the notes and the information below to create your own timeline of the Earths History
History of the Earth in 9 Minutes
History of the Earth in 9 Minutes
Timeline of Earths History
Timeline of Earths History
Origins to 1 Billion YA
13.8 Billion YA
13.8 Billion YA
The Big Bang occurs establishing what is considered the "start of the universe"
4.6 Billion YA
4.6 Billion YA
The Solar System is space dust around a new star, our Sun
The space dust starts getting pulled together into tiny rocks due to gravity
4.54 Billion YA
4.54 Billion YA
Gravity continues to pull these rocks together becoming bigger and bigger, forming the basis for Earth. Earth is now 1 of 100 planets circling the Sun.
The temperature is over 1200 degrees C and resembles an endless ocean of lava.
4.53 Billion YA
4.53 Billion YA
The final major collision was with a planet called Theia, a rocky planetoid around the size of Mars today. It is not a direct hit, most of Earth survives, but Theia destroys most of its self.
1000 years after this event, a ball forms from the material ejected into space. Our Moon.
over the next 500 million years our planet begins to cool and harden into rock.
over the next 500 million years our planet begins to cool and harden into rock.
3.9 Billion YA
3.9 Billion YA
Large meteorites left over from the formation of the solar system bombards the Earth for 20 million years. These meteorites carry water droplets to Earth, this is the water that is still found on Earth today.
3.8 Billion YA
3.8 Billion YA
Water covers the surface of the Earth. Magma burst through as Volcanoes and cools to form the first land.
The Earth is still continually hit by meteorites, this time they do not bring water but minerals such as carbon. Shortly after, microscopic life begins.
3.5 Billion YA
3.5 Billion YA
Stromatolites turn sunlight into food, a process known as photosynthesis. A by-product of this process is Oxygen. The oxygen turns traces of iron in the water into rust which falls to the bottom of the ocean and is formed into iron-rich rocks.
over the next 2 billion years oxygen levels continue to rise and the earths rotation slows. Days are now 16 hours long.
over the next 2 billion years oxygen levels continue to rise and the earths rotation slows. Days are now 16 hours long.
1.1 Billion YA
1.1 Billion YA
Tectonic plates move the land and oceans around creating the first supercontinent Rodinia.
Well Done Lesson Complete
Well Done Lesson Complete
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