What's the difference between scuba and free diving? What kind of marine life is in Singapore? What sounds do you hear underwater? Can corals get un-bleached?

And most importantly, what on earth is zooxanthellae?

In this episode of Void Deck by Science Centre Singapore, Lydia asks science educators Meng and Edna to deep dive into all things ocean.

For more ocean content, join us for our Science Cafe panel discussion on 26 June 2026: https://www.science.edu.sg/workshops-activities/science-cafe

Episode Highlights & Timestamps

00:00 - 01:23 Introduction

01:23 - 03:11 Scuba and Free Diving

03:11 - 04:25 Marine Life: Dugongs

04:25 - 05:16 Marine Life: Peacock Mantis Shrimps

05:16 - 05:52 Marine Life: The Number 1 Rule

05:52 - 08:41 Marine Life in Singapore

08:41 - 11:46 Difference between Scuba and Free Diving

11:46 - 13:38 Are corals plants or animals?

13:38 - 15:48 Sounds underwater

15:48 - 16:28 Are whalesharks whales or sharks?

16:28 - 17:16 What is a plankton?

17:16 - 18:38 Coral bleaching

18:38 - 20:03 Guest Feature: Tara Ocean Foundation

Guest biography

Mr. Lim Meng Hwee (Meng) is a Senior Science Educator at Science Centre Singapore. Some of the classes he teaches include the Aquatic Plants & Animals class, as well as astronomy workshops and planetarium live shows at the Omnitheatre on some Friday nights.

Ms. Edna Chan is a Master Science Educator from the Gallery Experience & Sustainability team at Science Centre Singapore. She hosts some of the flagship shows at our centre, such as the Energy Titans and Fire Tornado shows.

For full transcript and show notes, visit https://voiddeck.science.edu.sg/s3e3-deep-dive-vodcast/

Get your tickets to ONE Ocean here: https://www.science.edu.sg/whats-on/one-ocean

Have you ever seen humanoid robots walking the streets or going viral online? How do they move? Why don't they fall while carrying out all those fancy moves? In this episode of Void Deck by Science Centre Singapore, Lydia sits down with in-house 'robot trainer' Wenjun to unravel how such humanoid robots work.

Episode Highlights & Timestamps

• 01:11 Introducing the Unitree G1 Humanoid Robot
• 02:00 How can the robot do boxing?
• 03:10 How does the robot learn?
• 04:23 What can it help us with our daily lives?
• 05:00 'Would You Rather...'
• 05:43 Can robots replace humans?

Guest biography

Ms. Wenjun Liang is a Senior Science Educator at Science Centre Singapore. On a daily basis, Wenjun can be found around the centre conducting shows and interacting with guests. For the RoboFest, Wenjun has been specially trained to work with robots.

For transcription and show notes, visit: https://voiddeck.science.edu.sg/s3e2-how-to-train-your-robot

On 3 March 2026, the Moon turns red into a Blood Moon as it goes through a total lunar eclipse. But how exactly does that happen? In this episode of Void Deck by Science Centre Singapore, Lydia sits down with in-house space expert Meng to unpack what makes this total lunar eclipse special. Why does the Moon turn red? Is a Blood Moon different from a lunar eclipse?

Episode Highlights & Timestamps

• 00:51 Why does the Moon turn red?
• 01:32 Quickfire 'This or That' -- what does our space expert prefer?
• 02:10 How to watch the eclipse on 3rd March 2026
• 04:39 Embarrassing Question #1: Are all lunar eclipses red?
• 05:28 Embarrassing Question #2: Is a Blood Moon = a lunar eclipse?
• 06:18 Fun Fact!: Eclipses always happen in pairs

Guest biography

Mr. Lim Meng Hwee (Meng) is a Senior Science Educator at Science Centre Singapore. On a daily basis, Meng conducts workshops and classes in the centre, including the planetarium shows at the Omnitheatre some Friday nights. Meng is especially focused in astronomical sciences and you may often see him at local astronomical sites with his very own gear and mind full of stars.

For full transcript and show notes, visit: https://voiddeck.science.edu.sg/s3e1-lunar-eclipse/