Science in the Ancient World is the second book in a hands-on, multilevel elementary science series that introduces scientific concepts using history as its guide. Because each lesson is built around an activity or experiment, it is engaging for all K-6 students. The course covers the scientific work of natural philosophers who lived from about 600 BC to the early AD 1500s. It concentrates mostly on what these ancient scientists got right, but it does spend some time discussing what they got wrong, because even the mistakes that scientists make can sometimes advance our understanding of the natural world. Of course, when the students are taught something that is now known to be incorrect, they are made aware of this fact!