Bursting Bubbles models how to plan, carry out, and communicate about an investigation through the fictional account of two children investigating how bread is made. As they investigate mixtures including yeast, sugar, and different temperatures of water, they make a series of mistakes. Each time they notice a mistake, they add another trial during which they make their investigation a little better. This book highlights common points of difficulty in the investigation process, such as controlling variables, making comparisons, taking measurements, and making explanations. The Lexile Level of the text is R/670.