Why does mold grow? Why is the sea salty? What makes day and night? Kids can have all these questions-and more-answered in How to Be a Scientist, as they learn how to think like a scientist and look at the world to figure out how science works. More than 40 simple activities have undetermined answers, encouraging curious young readers to find new ways to test ideas, and fun questions, games, and real-life scenarios make scientific concepts fun and relevant. The stories of the great scientists and their discoveries-and failures-are told in an entertaining way to provide even further inspiration for little budding scientists.