# How do trees take in carbon dioxide and make the oxygen we breathe? Science Short

An episode of [Squiz Kids](https://invisiblenetwork.ai/podcast/1494238283), 23 Oct 2026, 3:48.

Audio: https://traffic.megaphone.fm/STHZE3463479902.mp3

How do trees take in carbon dioxide and make the oxygen we breathe? Dylan, eight, from Karrinyup has sent in this week’s excellent question and Christie’s heading inside a leaf to investigate! Discover how trees use sunlight to make their own food and produce oxygen in the process, and how microscopic ocean organisms help produce the oxygen our planet depends on. From roots to treetops and out to sea, there’s a lot behind every breath! Got a science question you’d like Christie to investigate? Email squizkids@thesquiz.com.au.

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