Storiascopio · Era 1 of 12 · primary year 3
The Big Bang
about 13.8 billion years ago · The whole Universe
In short
About 13.8 billion years ago the Universe began to expand from an extremely hot, dense state. It was not an explosion inside empty space: it was space itself that stretched out. The oldest light we can observe still carries a trace of those very first moments.
Why it matters It is the starting point for the story of the Universe, of matter and of everything that came afterwards.
Source: NASA, “Overview” (Universe, history of the cosmos)
Where we are in the era “The Earth before us”
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about 13.8 billion years agoEvent 1 of 25about 66 million years ago
Your turn
Name ______________________ Class ______ Date __________
When did it happen? Find the date at the top and write it here:
Tell it in your own words: what happened?
Draw the scene below.
storiascopio.com/en/event/the-big-bang/ · free worksheet, you may photocopy it for your class