A kindergarten-level introduction to seeders, covering their purpose, parts, role in farming, and such defining features as their hoppers.
A kindergarten-level introduction to harvesters, covering their purpose, parts, role in farming, and such defining features as their metal bars.
A kindergarten-level introduction to cultivators, covering their purpose, parts, role in farming, and such defining features as their metal shanks.
A kindergarten-level introduction to tractors, covering their purpose, parts, role in farming, and such defining features as their big tires.
A kindergarten-level introduction to the planet Earth, covering its orbital process, its moon, and such defining features as its clouds, oceans, and forms of life.
An elementary exploration of volcanoes, focusing on the geological evidence that helps explain how and where they form and spotlighting famous examples, such as Hawaii’s Mauna Loa.
An elementary exploration of landslides, focusing on the geological evidence that helps explain how and where they form and spotlighting famous examples, such as the 2013 Indian landslides.
A basic exploration of the parts, variations, and worksites of dump trucks, the hauling and dumping machines. Also included is a pictorial diagram of variations of dump trucks.
An elementary exploration of glaciers, focusing on the geological evidence that helps explain how and where they form and spotlighting famous examples, such as those in Glacier National Park.
An elementary exploration of earthquakes, focusing on the geological evidence that helps explain how and where they form and spotlighting famous examples, such as the 2004 Indian Ocean quake.
An elementary exploration of geysers, focusing on the geological evidence that helps explain how and where they form and spotlighting famous examples, such as Yellowstone’s Old Faithful.
A basic exploration of the parts, variations, and worksites of excavators, the big digging machines. Also included is a pictorial diagram of variations of excavators.
An elementary exploration of canyons, focusing on the geological evidence that helps explain how and where they form and spotlighting famous examples, such as Arizona’s Grand Canyon.
A basic exploration of the parts, variations, and worksites of cranes, the tall moving machines. Also included is a pictorial diagram of variations of cranes.
A basic exploration of the parts, variations, and worksites of backhoes, the digging and hauling machines. Also included is a pictorial diagram of variations of backhoes.
A basic exploration of the parts, variations, and worksites of concrete mixers, the cement-mixing machines. Also included is a pictorial diagram of variations of concrete mixers.
A kindergarten-level introduction to grasslands, covering their climate, plant and animal life, and such defining features as their varied grasses.
A kindergarten-level introduction to wetlands, covering their climate, plant and animal life, and defining features.
A kindergarten-level introduction to tow trucks, covering their purpose, where they are found, their drivers, and such defining features as their booms and winches.
A kindergarten-level introduction to the large trucks known as big rigs, covering their purpose, drivers, and such defining features as their tractors and trailers.
An elementary exploration of dire wolves, focusing on fossil evidence that helps explain how their shaggy hair, strong jaws, and sharp teeth helped these beasts adapt to the last Ice Age.
An elementary exploration of monster birds, focusing on fossil evidence that helps explain how their wide wings and long feathers helped these beasts adapt to the last Ice Age.
An elementary exploration of giant short-faced bears, focusing on fossil evidence that helps explain how their long legs and wide snouts helped these beasts adapt to the last Ice Age.
An elementary exploration of stag-moose, focusing on fossil evidence that helps explain how their wide antlers and sharp hooves helped these beasts adapt to the last Ice Age.
An elementary exploration of saber-toothed cats, focusing on fossil evidence that helps explain how their sharp, curved teeth and short legs helped these beasts adapt to the last Ice Age.
