The world population has reached 8 billion people, according to the United Nations. In this guide, students will learn about how the human population has grown over time and how it is projected to grow in the future, then analyze a graph of world population data. In a quick activity, students will think about how a growing human population might impact various industries and how changes at the national or international level might help those industries support a larger population.
Students will answer questions about the Science News article “The world population has now reached 8 billion,” which explores trends in human population growth. A version of the article, “Human population hits a milestone,” appears in the December 17, 2022 & December 31, 2022 issue of Science News.
Students will read and answer questions about the online Science News article “Black Death immunity came at a cost to modern-day health.” A version of the article, “Plague immunity left a lasting mark,” appears in the November 19, 2022 issue of Science News.
Population genetics bridges the basic concepts of genes and inheritance, often studied at the individual level, with the larger concept of how a species evolves. In this discussion, students will review basic genetics concepts and investigate an example of evolution within the human population.
Ever seen a face in the moon? Or a slice of toast? What about the front of a car (and not just the characters in the movie Cars)? If so, you’re in good company. Many people see faces in commonplace objects. After learning about face pareidolia, the phenomenon of seeing faces in everyday objects, students will collect images of faces they find in nature and inanimate objects and then poll classmates on the perceived gender of the faces. Students will compare their results to results from a study reported in Science News and then design their own follow-up research on face pareidolia.
Heat waves are becoming more frequent around the globe, and scientists are studying humans’ ability to endure the extra heat. Get students thinking about what it means to handle heat and explore basic thermodynamic concepts through diagramming. Learning Outcomes: Diagramming
Students will answer questions about the Science News article “Humans may not be able to handle as much heat as scientists thought,” which explores the effects of extreme heat on the body and what that means for us as heat waves intensify around the globe. A version of the article, “How much heat can we handle?” appears in the August 27, 2022 issue of Science News.