Helium
in example sentence
Now, stars like our sun, which are relatively small, burn hydrogen into
helium
, but heavier stars of about eight times the mass of the sun continue this burning cycle even after they exhausted their
helium
in their cores.
More example sentences with word helium
And now simple atoms appear of hydrogen and
helium.
It consisted of huge clouds of hydrogen and
helium
atoms, and they have no structure.
So where you get slightly denser areas, gravity starts compacting clouds of hydrogen and
helium
atoms.
For instance, here they are laying down the balloon fabric behind, which is eventually going to be filled up with
helium.
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