is milk a pure substance - #18666
I am super confused about this whole "is milk a pure substance" thing. Last week, I was chatting with my friend who says it totally is, like just milk straight from the cow! But then, when I went to the store, I saw all these labels on different milks and some had added vitamins, stuff like calcium, and who knows what else. It got me thinking, ya know? I started looking into it more and found that some kinds of milk are fortified and others are processed differently, which makes me wonder, can we even say is milk a pure substance if it’s sometimes mixed with other stuff? At home, my toddler drinks whole milk like it’s going out of style, but I can’t help but worry if I’m giving him something that’s not pure. And if it's true that is milk a pure substance, then how do they even make sure that every batch is the same? I feel like the more I read, the less I know! Are there hard and fast rules about what makes a substance “pure”? Any help would be awesome!
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