Provides simple facts about the American presidency, including the eight presidents before Washington, that three presidents died on July 4, and that Lincoln was the first president to be photographed
Provides simple facts about the United States flag, including how a new star is added every time a state is admitted to the Union, when the Pledge of Allegiance was written, and the days the flag shou
Introduces the concept of electricity, covering such topics as its ubiquity in the world, how it has been studied throughout history, its use in batteries, and its relation to magnetism.
Introduces snakes, describing their physical characteristics, habitat, behavior, discussing why these animals can be unsuitable as pets, and facts about snake ownership.
Presents information about community gardens, looking at what they are, their history, reasons why people create them, how people use them, and how they are organized.
Introduces small and microscopic insects, including mosquitoes, fleas, lice, and "no-see-um"s, and describes how some are irritating or harmful to humans while others are beneficial.
Explores how and why insects and animals enter ecosystems to which they are not native, as well as the consequences of these invasions for other animals, plants, and humans.
Presents general information about sea otters, the dangers that they face that threaten their survival as a species, and the work that is done to protect them.
Presents general information about snow leopards, the dangers that they face that threaten their survival as a species, and the work that is done to protect them.
Details the minerals, including graphite, azurite, and diamond, that are found around the Earth, and explains how they are formed, mined, and utilized.
Introduces stick bugs, including the different species' characteristics, what they eat, how they care for their young, and how they use their appearance to hide from predators.
Examines the importance of biodiversity, discussing animals in crisis and ways science is fighting to counteract the impact mankind has had on the environment and endangered species.
Reveals how science is combating viruses, discusses how the human body can be kept alive with organ transplants and machines, and looks to the future challenges the field faces.
Discusses some of the Earth's harshest environments and the adaptations that animals and plants have made to live in them, describing such places as deep water, deserts, the polar regions, underground
"We see the moon waxing and waning every month, and we know it controls the tides. However, we rarely wonder how it got there in the first place and why it continues to accompany Earth around the sun.
Describes what life was like for pioneers on the American frontier in the eighteenth and nineteenth centuries, discussing what they ate, what type of work they did, where they lived, and challenges th
Looks at what life is like aboard a military submarine, including a history of submarine vehicles, the challenges of adjusting to life underwater, and the usage of sonar.
