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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.

In this quick activity, students will brainstorm the effects of population growth on industries such as agriculture and medicine, then will work collaboratively to come up with changes at the national or international level that will help those industries support the growing population.

Students will explore a graphic representation of trends in the size of the global human population and analyze the importance and implications of projected data.

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.

From buildings to machines to household objects — and even in the natural world — the structure of something relates to its function. Sea urchin skeletons, for example, have a recurring geometric design called a Voronoi pattern that also shows up in honeycombs and dragonfly wings. The pattern probably strengthens the skeleton and could inspire the creation of strong, lightweight materials. In this activity, students will explore aspects of structure and function in everyday objects before applying the same concepts to the natural patterns found in sea urchin skeletons. Inspired by the sea urchin, students can use an engineering design process to brainstorm solutions to real-world problems.

Large swarms of insects could produce as much electricity as a storm cloud. In this guide, students will explore how insect-induced static electricity might affect the atmosphere, review the concepts of electric charge and electrostatic force, and apply those concepts to their own experiences and the biological phenomenon of insect swarms. In a quick activity, students will create a poem or song about serendipity in science.

In this quick activity, students will create a poem or song about a serendipitous finding in science.

Students will use their experiences of static electricity to learn about electric charge and electrostatic force, then apply the concepts to a biological phenomenon. Learning Outcomes: Reinforcement of Coulomb’s Law with interdisciplinary examples.

Students will read and answer questions about the online Science News article “Insect swarms might generate as much electric charge as storm clouds,” which explores how insect-induced static electricity might affect the atmosphere. A version of the article, “Insect swarms might electrify the sky” appears in the December 3, 2022 issue of Science News.

Traces of one of history’s most infamous pandemics may linger in our genes. In this Guide, students will learn about a genetic link between the Black Death and a modern-day disease and discuss basic genetics concepts at the individual and population levels.

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.