The conditions for rapid combustion

This experiement shows that combustion will not occur if any of the following is missing: combustible substance, oxygen or ignition temperature.

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Mixing substances, separating mixtures 2 (observation)

Separating mixtures if one of the substances dissolves in water.

Dissolution of hydrogen chloride (HCl) in water

The solution of hydrogen chloride in water is called hydrochloric acid.

Bending a jet of water (observation)

A surprising phenomenon occurs when we hold a statically charged ruler near water flowing from a...

Glowing heart

We burn a heart in a piece of paper with the help of oxygen produced upon the decomposition of...

The effect of concentration on chemical equilibrium (observation)

Examining the colour of cobalt(II) chloride in water and hydrochloric acid.

Fading raspberry juice

We are testing surface binding abilities by adsorbing raspberry juice on active carbon of large...

The effect of temperature on chemical equilibrium

Change in the colour of the cobalt(II) chloride solution due to heating and cooling.

The viscosity of liquids (observation)

Have you ever thought about why honey flows so slowly from a spoon compared to water?

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