Title: National Geographic Kids Quiz Whiz 6: 1,000 Super Fun Mind-Bending Totally Awesome Trivia Questions, Author: National Geographic Kids
Title: What If: Mind-Boggling Science Questions for Kids, Author: Robert Ehrlich
Title: How Come?: Every Kid's Science Questions Explained, Author: Kathy Wollard
Title: The New York Public Library Incredible Earth: A Book of Answers for Kids, Author: The New York Public Library