Hi Kiddo, ALL kids love to learn. It is natural.
The kid asks, "Why, why, why?"
Give them the tools to learn, and let them loose!
Whatever you do, DON'T put them in government schools.
I think that some kids are more motivated than others.
My son is gifted, and he is the least motivated of my 3 kids. He likes to sit around and play computer games.
My daughters are totally different. One of them loves math and sits around doing math worksheets for fun. The other loves science and reads books and the internet about volcanoes, different kinds of animals, electricity, etc.
However, none of my kids like to write. They avoid it like the plague.