Each preview runs right on this page, so you can try it before you sign up.
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Back to ShowcaseKoydo LABS
Hands-on science labs you can play in your browser.
Heat and cool matter, explore the body one layer at a time, and practise speaking out loud. Three labs, ready to try right now — nothing to download.
The app versions add richer scenes, sound, and touch feedback.
You change something, see what happens, and understand why — that is how the ideas stick.
Try them now
Three labs you can play right now.
Playable demoMatter & Energy Lab makes states of matter something you can heat and cool.
Drag the temperature and watch particles freeze, melt, and boil — solid, liquid, gas — right in your browser.
Play the preview
Playable demoBody Atlas lets you explore the body one calm layer at a time.
Switch the skeletal, muscular, circulatory, and nervous systems on and off on a clear body diagram, with a plain-language fact for each.
Play the preview
Playable demoSpeech Lab scores clarity, rhythm, and meaning as you speak.
Say a phrase and get instant feedback on how clearly, smoothly, and completely you said it — right in your browser.
Play the previewWhat you'll explore
What each lab teaches
Physics and chemistryMatter & Energy LabStates of matter
Drag the temperature and watch a solid melt, a liquid boil, and a gas cool back down.
Coming soon in the app: pressure, heating curves, and labelled measurements.
Try this labBiologyBody Atlas LabBody systems
Switch the skeleton, muscles, heart and blood vessels, and nerves on and off, with a plain-language fact for each.
Coming soon in the app: breathing and digestion layers, zoomable organs, and a quick quiz.
Try this labLanguagesSpeech LabSpeaking practice
Say a phrase out loud and get instant feedback on how clearly, smoothly, and completely you said it.
Coming soon in the app: real-life conversations with turn-by-turn feedback.
Try this lab