Most popular experiments

Starch and iodine reaction

Starch and iodine reaction

When a few drops of colorless solution are added to another colorless solution it suddenly turns dark-blue.

Sublimation of iodine

Sublimation of iodine

Crystals become a vapor!

Reaction of Copper with Nitric Acid

Reaction of Copper with Nitric Acid

Water fountain turns a green solution to a beautiful blue color and makes the brown gas disappear.

Preparation of hydrogen sulphide and its properties

Preparation of hydrogen sulphide and its properties

The gas with rotten egg smell is liberated and dissolves in water.

Soap Test for Water Hardness

Soap Test for Water Hardness

Different samples of water give various amount of foam and some turn cloudy.

Golden rain

Golden rain

Beautiful crystals of bright yellow colour are formed under cooling.

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New experiments

Ammonia fountain

Ammonia fountain

Water absorbs ammonia and fills the flask

Instant snow

Instant snow

A huge volume of water is converted into powder

Snowfall in a vial

Snowfall in a vial

Have you ever seen an ammonia chloride snowflake?

Silver grows on copper

Silver grows on copper

Silver crystals grow on a copper wire

Ferrocerium firework

Ferrocerium firework

Red hot ferrocerium rod gives many sparks

Burning properties of gunpowder

Burning properties of gunpowder

Various types of gunpowder burn differently

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Coolest experiments

Silane from magnesium silicide

Silane from magnesium silicide

Freshly prepared silane reacts vigorously with oxygen

Colored alcohol flames

Colored alcohol flames

Create beautifully colored flames by burning alcohol with various additions

Hot ice

Hot ice

When crystals touch the liquid surface it rapidly starts freezing.

Sand snake

Sand snake

Sugar and baking soda make a black snake.

Blue bottle

Blue bottle

Does the solution become colorless? Shake it to make blue again!

Liquid light

Liquid light

Two liquids mix together and start to emit a blue light

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Most dangerous experiments

Gummy bear volcano

Gummy bear volcano

Gummy bears vigorously burn in a test-tube

Exploding bubbles of hydrogen

Exploding bubbles of hydrogen

Soap bubble becomes a fireball.

Silane from magnesium silicide

Silane from magnesium silicide

Freshly prepared silane reacts vigorously with oxygen

Explosion of nitrogen triiodide

Explosion of nitrogen triiodide

Special substance explodes on hitting

Barking dog

Barking dog

The wave of blue light spreads along the tube filled with carbon disulphide and nitrogen monoxide gases and is accompanied with a barking sound

Fire storm

Fire storm

Scattering sparks of fire occur in the flask after adding hot chromium (III) oxide powder

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Difficult experiments

Hydrogen chloride fountain

Hydrogen chloride fountain

Water quickly flows into the flask and changes color

Reaction in air bags

Reaction in air bags

Generation of large amounts of gas under thermal or mechanical influence on sodium azide

Fluorescent oscillating reaction

Fluorescent oscillating reaction

A mixture of three solutions periodically changes color and glows in UV

Fluorescent Dye

Fluorescent Dye

Liquid light is prepared!

Arsenic-based pigments

Arsenic-based pigments

Beautifully colored precipitates are formed from solutions

Sulfuric acid from copper sulfate

Sulfuric acid from copper sulfate

Preparation of sulfuric acid by electrolysis using copper sulfate

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Easy experiments

Silver grows on copper

Silver grows on copper

Silver crystals grow on a copper wire

Preparation of hydrogen sulphide and its properties

Preparation of hydrogen sulphide and its properties

The gas with rotten egg smell is liberated and dissolves in water.

Silver acetylide explosive

Silver acetylide explosive

A solid substance explodes under heating.

Magic Jug

Magic Jug

One solution is poured into six different glasses and they become different colors

Chemical Garden

Chemical Garden

From salt crystals, descended into the solution, colored tubes that resemble algae grow

Group 2 metals react with water

Group 2 metals react with water

Demonstration of the reactivity of group 2 metals with water

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All experiments

Acetone flashlight

Acetone flashlight

Copper wire glows in acetone vapor

Acetylene & Oxygen Explosion

Acetylene & Oxygen Explosion

Explosion of the acetylene-oxygen mixture

Acid-Base titration

Acid-Base titration

One colorless liquid is added gradually to another colorless liquid, and at one moment the solution becomes pink

Alcohols and chromium (III) oxide

Alcohols and chromium (III) oxide

Demonstration of the burning of alcohols in presence of chromium (III) oxide

Alkali metals and air

Alkali metals and air

Demonstration of the behavior of alkali metals in air

Alum from soda cans

Alum from soda cans

Obtaining alum from soda cans

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MEL Practicum is an online encyclopedia of chemistry experiments and demonstrations. All experiments are categorized by their level of difficulty, by reagent used and their type. For each experiment, you will find multiple videos, step-by-step instructions, reagents used, safety information, basic science background, links to other online resources, and other related information.

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