Here's why it's considered free verse:
* No set rhyme scheme: The lines in the poem don't rhyme with each other.
* No regular meter: The poem doesn't follow a predictable rhythm or pattern of stressed and unstressed syllables.
* Emphasis on imagery and emotion: Hughes uses vivid imagery and simple language to convey the child's wonder and awe, focusing on the emotional impact rather than strict form.
The poem's free verse style effectively captures the child's innocent perspective and the boundless curiosity they experience in the world around them.