"As in wood used for a fire, or is the wood in some way already related to fire?" she asked, walking closer to examine the wood. It didn't look like she expected wood to look at all. Though getting closer, she could see the inside that looked maybe, almost, like wooden tent poles if she squinted and ignored the size. But the outside...

"Trees? Those are trees?" And then as if remembering a lesson she knew but never thought would be practical she said "Wood comes from trees" reminding herself. It wasn't terribly unlike having learned about the ocean as a child, but being startled as an adult the first time you discover water can be salty.