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July 4, 2025

In this archival show, undersea archaeologist Robert Ballard shares adventures from beneath the waves and his love for deep-sea exploration. Plus, research suggests that we share parts of our microbiome with people in our social networks beyond family members. And, a book uses science and the benefit of hindsight to figure out how to survive some of history’s biggest disasters.

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Educational Resource

Keeping a Betta

In this activity, students will research general information about bettas and use that information to determine suitable habitat requirements and maintenance. Students will work collaboratively to perform weekly maintenance duties to keep their betta alive. Students also will observe physical characteristics of their betta and conduct investigations on the behavioral characteristics of their betta.

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Educational Resource

Mineral Madness

Geologists are greatly interested in minerals because they can reveal an enormous amount about the history of the geologic environment in which they are found. Geologists can classify and identify minerals by observing various properties such as streak, hardness, luster and, in some cases, fluorescence. In this activity, students will examine 10 mineral specimens and explore the different properties that minerals exhibit.

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Video

Geek My Pumpkin

Maniac Pumpkin Carvers Marc and Chris carve hundreds of pumpkins each fall, which go for a few hundred bucks and rarely end up on stoops. They gave us some tips for how to bring our pumpkins to the next level this Halloween.

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Educational Resource

Termite Symbiosis

In this activity, students will sort and classify interactions between pairs of organisms under the appropriate symbiotic relationship of commensalism, parasitism, and mutualism. Then students will observe mutualism in action, as they perform a termite dissection.

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Educational Resource

Colorful Chromosomes

In this activity, students review how human physical traits, such as eye color, are determined by specific segments of genes. Students will use basic crafts materials to build a simplified model of a pair of chromosomes that represents some of their own physical traits. Then students will compare and contrast their models, to determine which traits are most frequently found among their classmates and therefore can be called high frequency traits.

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Video

Solar Spotting

Using the Swedish Solar Telescope, a ground-based observatory, Goran Scharmer and colleagues probe the penumbra—that’s the stringy structure around the perimeter of the dark part of the sunspot.

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Educational Resource

Delicious Smelling Chemistry

Use household materials to investigate and explore your ability to smell an odor, then compare and contrast results to determine if some individuals have a better sense of smell than others. Observe the Maillard reaction and how different odor molecules are released into the air.

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