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Big History Project

Course: Big History Project > Unit 4

Lesson 2: What Was Young Earth Like? | 4.1

ACTIVITY: Infographic — Chemical Abundances: The Universe

Hydrogen is the most abundant element in the Universe and helium is second. Together they make up roughly 74% and 24% of all matter in the universe respectively. Download a PDF of Chemical Abundances: The Universe infographic.

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Sarini/nunu
Posted 3 months ago. Direct link to Sarini/nunu's post “wow so interesting”
wow so interesting
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B3rry_
Posted 2 months ago. Direct link to B3rry_'s post “how do they know the chem...”
how do they know the chemical abundance of the universe? Is there a way to measure it? I am confused on how they measure/know the chemical abundance of the universe.
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