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Videos / Physics & Chemistry

Natural Indicators
Some examples of indicators used in the lab are litmus paper, phenolphthalein and bromothymol blue. But indicators can be found in everyday foods like tea and red cabbage.

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Formation of Sulphur
Hydrogen sulphide and sulphur dioxide are mixed together with a few drops of water acting as a catalyst to produce solid sulphur.

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Sodium in Chlorine Gas
Most of the time you've seen NaCl get created by NaOH + HCl in labs. Here's a more flashy version of NaCl formation.

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Sodium and Potassium in Water
We've all seen the classroom demonstrations, now you can see up close what happens when you put these two Group I metals in water!

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Physical Properties of the Halogens
Group 7 elements, aka the Halogens, are indeed a strange and colorful bunch. Cl, Br and I are featured.

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Dehydration of Sugar
Sulphuric acid is an extremely powerful dehydrating agent. What happens if you mix some concentrated H2SO4 with sugar?

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