Episode guide
Hippos: The Science of Sinking
Hippos are too dense to float, so they do something better: they walk along the river bottom, slow as astronauts. This episode wades in beside them.
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The science, gently
- Hippos sink naturally and bounce-walk along riverbeds in slow motion.
- They can nap in the water, rising to breathe without fully waking.
- Their skin makes its own red-tinted natural sunscreen.
Wonder together
- Would you rather float like an otter or moon-walk like a hippo?
- How do you think a body remembers to breathe without waking?
- What is your slowest, heaviest, coziest way to move?
Tonight's calm-down
Be heavy on purpose: let arms, legs, and head sink into the riverbed of the mattress. Your breathing will rise for air all by itself, as it has every night of your life.
Go further together
There's so much more to explore.
The episode is a whole story on its own. But if the wondering keeps going after the audio ends, the Family Guide opens this one all the way up: the same calm voice, turned into something you can do together at the table the next morning.
- Questions written for your child's age, not just their reading level
- One hands-on experiment, simple enough for tonight
- The science words behind it, in plain language
- A printable to color, keep, or fill in
Two versions inside: one for ages 4–6, one for ages 7–10.
Free to read while the library grows.