One Crazy Summer by Rita Williams-Garcia is the first book in a trilogy about the Gaither sisters: Delphine, Vonettam, and Fern as they grow up during the Civil Rights Movement of the 1960s. They leave their loving father and grandmother in Brooklyn and travel to Oakland, California to spend a month with the mother they've never known.
Vocabulary is the knowledge of words and what they mean. Learning and using new vocabulary is something that continues and expands throughout our lives, and is way more than simply looking up and memorizing a definition.