Combustion & Air Gases | Grade 6 Science | Episode 1

"Why does a candle go out when we cover it with a jar? 🕯️ And why does it keep burning if we open a hole at the bottom and the top? In this episode, we start with the colored fire experiment 🔥🌈 and discover the conditions for combustion — and how we can control fire. Through real experiments, you'll see: 🌬️ Why burning needs a constant supply of fresh air ❄️ A candle going out in liquid nitrogen — nitrogen makes up 78% of the air 🎈 Carbon dioxide puts the flame out (0.04% of air), while oxygen makes it burn brighter (21% of air) 🧪 How clear limewater detects carbon dioxide after burning 📟 Gas detectors: the color-change tube and the digital sensor Think about it 🤔 Why does carbon dioxide increase at the same time as oxygen decreases inside a closed jar during burning? Tell us in the comments 👇 ⚠️ Experiments are performed under expert supervision only. You'll enjoy it more when you see the experiment, then try it yourself on Shareh. ✨ 15 minutes a day can build a strong foundation in science. Try the full learning journey on Shareh: 🌐 shareh.ai #Shareh #Grade6Science #ScienceForKids #Combustion #Oxygen #CarbonDioxide #ScienceExperiments" 🔗 JOIN US 🌐 Our Platforms Shareh: https://www.shareh.ai/ar Science Street: https://sciencestreetlab.com 📸 Instagram Science Street:   / annanscience   Science Street Lab:   / sciencestreetlab   Shareh:   / shareh.ai   📘 Facebook Science Street:   / annanscience   Science Street Lab:   / sciencestreetlab   Shareh:   / shareh.aai   🎵 TikTok Science Street:   / annanscience   Science Street Lab:   / science.street.la   Shareh:   / shareh.ai