Read this excerpt from A Black Hole Is NOT a Hole. There's more to invisibility than what doesn't meet the eye. All sorts of things are invisible to us, for different reasons. Some, like atoms, are too tiny to see. Others, like a black cat on a dark night, aren't lit brightly enough. How does the author use description to support understanding of what invisibility is? She describes several features of invisibility in detail. She describes how scientists study invisible things. She provides examples of things that are invisible. She describes characteristics of human vision.