Can You Pass This 5th Grade Science Quiz?

Which Chemical Elements Make Up Most Of The Sun?

Retry Correct Incorrect The sun is made up of mostly hydrogen and helium. About 70% of the gas in the sun is hydrogen and about 28% of it is helium. The remaining 2% is made up of small amounts of other elements.

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Photo by John Keeble/Getty Images

Photo by John Keeble/Getty Images

Which Chemical Elements Make Up Most Of The Sun?

• Helium and oxygen
• Hydrogen and helium
• Just hydrogen
• Hydrogen and oxygen