Broadcast Outage: We're investigating a broadcast transmission failure affecting the San Luis Valley from Antonito in the south to Salida in the north. We're working to resolve this issue. You can stream our live broadcast HERE or via the RMPBS+ App.

Stream live and on-demand content now on our new app:
RMPBS+

Help tell more stories in 2026 - make a year-end gift!

Give Now
Elinor Wonders Why show's poster

Big Trees/Baby Steps

Elinor models the foundational practices of science inquiry and engineering design -- including her amazing powers of observation and willingness to ask questions and investigate. When she encounters something she doesn’t understand, like why birds have feathers or how tiny ants build massive anthills, she just can’t let it go until she figures it out.

RMPBS Passport

Please log in to your PBS Passport account to watch this video

Become a Member

Big Trees/Baby Steps

Season 1 Episode 26 | 25m 10s | CC

The kids go on a special field trip to the forest to see the world's tallest trees. When they arrive, the kids are AMAZED to see the huge sequoias, which are so tall, the kids can’t even see the top! / Elinor and Ari decide to teach Ari’s baby sister, Miri, to walk. The kids learn that sometimes, you can’t do things, because your body isn’t ready yet.

Elinor Wonders Why

Watch more episodes

See more
See more

Subscribe to Our Newsletters

Get trusted Colorado stories, programs, and events from Rocky Mountain PBS straight to your inbox.

Set Your Preferences >