ʻO ka oxygen kekahi mea. Loaʻa ʻia kēia mea ma ke ʻano he kinoea. Hoʻokahi hapalima o ka ea a puni mākou he oxygen. He mea koʻikoʻi ka oxygen no nā kānaka a me nā holoholona: pono ʻoe e hanu.
No ka manawa lōʻihi, ʻike wale ka poʻe i ka lewa. I ke kenekulia 18, akā naʻe, ua hoʻomaopopo ʻia aia kekahi mau mea. Hoʻokani pinepine ka oxygen i ka wā e ʻā ana kekahi mea i ke ahi. A laila hui pū nā mea me ka oxygen. Hiki pū kēia me ka ʻōpala: hoʻomoʻa mālie ka hao i ka oxygen, a ʻo ka ʻōpala ka hui pū ʻana o ka hao a me ka oxygen.
ʻO ka oxygen ka mea maʻamau ma ka honua. ʻAʻole i ka lewa wale nō: aia i loko o ka pōhaku a me ke one ka oxygen. Aia ka wai i ka hydrogen a me ka oxygen.
ʻAʻohe kala a me ka ʻala o ka mea. Inā ʻoe e anuanu loa, lilo ia i wai a paʻa paha. Loaʻa iā ia nā kristal uliuli.