This book really pops, full as it is of fascinating bubbles--useful and entertaining, noisy and silencing, lifesaving and dangerous, microscopic and bigger than a sports stadium. What is a bubble? A puff of air, a swirl of gas, temporarily trapped in something else. Perhaps just moments away from popping and disappearing forever. A bubble might look flimsy and insubstantial. But there's more to it than that. A bubble can. . .Last a long time, like the bubble wrap that cushions packagesOr pop right away, like a soap bubble It can be inside. . .A liquid, like boiling waterOr a solid, like a loaf of bread A bubble can be. . .Lifesaving, like firefighting foamOr dangerous, like the bubble nets whales form to capture fish Delve into bubbles in this follow-up from the team behind This Book Is Full of Holes. Filled with fascinating and unusual examples from diverse STEM fields--including physics, biology, geology, food science, and medicine--this book bubbles over with fun facts about our world. Back matter includes an author's note about the research process, language arts connections, and information about how surface tension makes fun soap bubbles possible. A Junior Library Guild Gold Standard Selection