This hilarious new book in the kid-favorite Just Joking series--packed with 300 science-themed jokes, riddles, knock-knocks, tongue twisters, and more--is scientifically proven to leave kids laughing, chuckling, and exclaiming "Eureka!" It's got jokes about all kinds of science stuff--kooky chemistry, funny physics, dinosaurs, space, and more--plus 10 stories of real-life scientific experiments that are so wacky you'll hardly believe them! This book is a gut-busting party-starter or a quiet-time entertainer, great for chuckling alone or reading aloud to friends and family. It's also perfectly portable: Toss it in a backpack or take it on the road for on-the-go giggles. The perfect read for science whizzes (and whiz wannabes), kid comedians, and laughter-lovers of all ages. Complete the collection with Just Joking Gross, Just Joking Dogs, Just Joking LOL! . and more!.