A brief exploration of what cave explorers do on the job, including the equipment they use and the training they need, plus real-life instances of exploring caves such as Kentucky’s Mammoth Cave.
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.
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 deserts, covering their climate, plant and animal life, and such defining features as their dry terrain.
A kindergarten-level introduction to mountains, covering their climate, plant and animal life, and such defining features as their rocky peaks.
A kindergarten-level introduction to oceans, covering their climate, plant and animal life, and such defining features as their salty water.
