We had an extra bag of ice laying around after a BBQ so we decided to build an ice tower using ice, salt, water and food coloring.

In this episode of Crash Course Kids, Sabrina talks about the adorable Nerpa and how they deal with rough conditions to live in Freshwater!

We have a lot of water on Earth, but we also can’t actually drink much of it… or use it for farming.

In this episode of Crash Course Kids, Sabrina talks about ecosystems and how one small change can lead to a cascade effect in the entire ecosystem.

But Why visits the New England Aquarium in Boston to get answers to those and other questions kids have sent us about fish.

We’re heading to the coast of Maine to learn a little bit about why the sea is salty and how mussels get their shells with Zach Whitener, a research associate at the Gulf of Maine Research Institute in Portland, Maine.