10 amazing science experiments

Hello, friends welcome to Hacker Om. In this blog, we will learn the science behind experiments, why it’s popular and how can we do these experiments.

1  Ferrofluid flower experiment 

Ferrofluid becomes popular because of its fantastical shapes. Ferrofluid is a suspension of tiny iron nanoparticles in mineral oil. It behaves like a moving liquid magnet when placed in a magnetic field. It forms beautiful spikes using magnetic fields.

Experiment process:-  

We can buy ferrofluid on Amazon but it is very costly. Here we will learn how can we make ferrofluid similar to original ferrofluid. We need HP printer toner, bike engine oil, petri dish, iron paste, and neodymium magnet. Pour 5-gram printer toner and 10ml engine oil on the petri dish. Pour 5-gram iron paste and mix all these by a spoon. Ferrofluid is now ready to use. Place neodymium magnet below the petri dish. Spikes will grow.

The science behind it:-

When a strong magnet is placed near the ferrofluid, spikes are observed. The spikes arise from the tendency of the particles to line up along the magnetic field lines to lower their energy. The surface tension of the fluid, however, limits the extent to which the particles can align themselves with the fields.

2 Electromagnetic Train Experiment:-

It is the world’s simplest electric train. It is a fascinating and cheap experiment that displays the basic principle of electromagnetism. We can make a simple electric train using just three items like a 1.5volt AA battery, some neodymium magnets, and uninsulated copper wire.

Experiment Process:- 

To do this experiment we need 15mm diameter 6 neodymium magnets, a powerful AA alkaline 1.5-volt battery, and 7 to 10-meter uninsulated copper wire. Wrap tightly the copper wire on a PVC pipe to make a long train’s path. Stick 3 magnets each side of the battery. Poles should be facing the opposite direction. The train is ready to use now. Put the train inside the coils from one end and push it inside. The train will run fastly towards another end.

Science Behind It:- 

Neodymium magnets which we stick on both ends of the battery create a bar magnet with a north pole and a south pole. When we put the train inside the coils it creates an electrical current to flow through the copper wire. Which creates a magnetic field in the section of copper wire coils right around the train. This magnetic field has its own north and south poles which push the train along the track. The train will only run one direction because of its magnetic poles.

3  Shrinking Balloon in Liquid Nitrogen:-

Liquid nitrogen experiments become popular due to its amazing properties. We can conduct many experiments with liquid nitrogen like artificial clouds, liquid nitrogen bottle rocket freezing non-freezing items etc. Liquid nitrogen is very cool about -200-degree Celsius. One of the most interesting experiments of liquid nitrogen is shrinking balloon. Here we will conduct an experiment of liquid nitrogen and balloon.

Experiment process:-

To do this experiment we need liquid nitrogen, balloon, and a bowl. Liquid nitrogen can be found on veterinary doctor’s shop or in milk dairy. Put the bowl on the table. Fill the air in the balloon and bind it properly. Put the balloon in the bowl and pour liquid nitrogen on it. The balloon will start shrinking. When its completely shrunk remove it from the bowl and put on the table. The balloon will start expanding soon.

Science Behind It:-

The air filled balloons shrunk and collapsed because of the air inside becomes cold and reduced in volume. In fact, the oxygen turns to the liquid inside the balloon and is visible in the balloon. When we take the balloon out then it starts heating up again. The room temperature is way higher and the air warms up and expands to fill up the balloon again.

4 Hot ice flower experiment:-

Sodium acetate or hot ice is very amazing chemical. We can easily make it at home using baking soda and vinegar or we can buy sodium acetate from the chemical shop. It’s a solution that crystallizes and looks like ice. Its crystallization is an exothermic process, so the resulting ice is hot. It creates beautiful flower structure when it solidifies or crystallizes. Hot ice is used in hand warmers and heat pad.

Experiment Process:-

To do this experiment we need 250-gram sodium acetate trihydrate, 300ml water, bowl, gas stove, and a petri-dish. Sodium acetate trihydrate can be easily purchased from a chemical shop. Pour 250-gram sodium acetate and 300ml water in the bowl and boil it on the gas stove. After 10 to 15 minutes of boiling a thin slimy layer will appear on the solution. This time we have stop heating. Pour the solution in petri-dish and keep it inside freeze to cools down. When it completely cools down take some sodium acetate and sprinkle on it. Flower will grow quickly and it will heat the dish.

Science Behind It:- 

When we pour some crystals of sodium acetate in supersaturated hot ice solution it provides a starting point for crystals to grow in the solution. We call it nucleation site. This push it needed to crystallize.

5 Thundering In Beaker:-

Thundering in flask or beaker is a very amazing science experiment. We can conduct this experiment using sulfuric acid, potassium permanganate, and acetone or 95% alcohol. When these chemicals react it looks like thundering in the beaker. 

Materials required:-

Sulfuric acid, potassium permanganate, acetone or 95% alcohol, a beaker.

Experiment Process:-

Pour 40ml sulfuric acid in the beaker. Pour acetone or alcohol by touching the bottle’s end to the beaker so that both chemicals do not mix each other. If it’s mixed it won’t work. Drop a few crystals of potassium permanganate into the beaker. Thundering will start after some time. Turn off the lights to see it clearly.

Science Behind It:-

The sulfuric acid and the permanganate react to form manganese heptoxide, which explodes when it comes into contact with the alcohol or acetone. The reaction looks a like a thundering in the beaker.

6 Magnetic putty or slime experiment:

Magnetic putty is very popular due to its amazing activity with powerful neodymium magnet. It is very simple to make.When magnets are within range of its magnetic field, the putty will slowly swallow them. Because the magnetic field of the putty is strongest at the center of the blob, the magnets are engulfed. The putty slowly sucks magnets in until they reach the strongest point of the magnetic field.

Materials Required:-

Fevicol or white glue, corn starch, iron paste, bowl, neodymium magnet, and water

Experiment Process:-

Pour 50ml fevicol and 40-grams corn starch in the bowl. Pour a little bit of water in it. Mix it properly. Pour iron paste on it and mix it properly so that it mixes all parts of putty. The magnetic putty or slime is ready to use now. Place the neodymium magnet near the putty. The putty will suck the magnets quickly.

Science Behind It:-

The iron paste causes this slime to be magnetic. The magnet is very strong but something prevents the iron filings from leaving the slime and clinging to the magnet. Iron paste covers the magnet with slime.

7 Instant Snow Experiment:

Instant snow is very magical powder. We have to add water to the Insta-Snow powder and watch as the liquid magically changes into snow in a few seconds. We can use it as fake snow for decoration. It expands 100 times bigger when we pour it in water. We can take it in our hand. It is not cool as snow.

Materials required:

2 spoon instant-snow powder, glass, and water

Experiment Process: 

Pour two spoon instant snow powder in the glass. Fill the glass with water. You can see snow formation. 

Science Behind It:

Instant snow powder is the superabsorbent polymer. Instant snow powder absorbs water and its long chains molecules swell to an enormous size. These polymers soak water using the process of osmosis. When water comes in contact with the polymer it moves from outside the polymer to the inside. This way polymer swell. If we allow the water to evaporate, the instant snow powder dries out and returns to its previous state and ready to be used again.

8 Genie in bottle experiment:

Genie in the bottle is an amazing magical experiment. When hydrogen peroxide drop in bottle or flask produce a cloud of water vapor and oxygen. It releases quickly which looks like a genie. We can learn decomposition reaction and exothermic reaction through this reaction.

Materials Required:-

A spherical flask or glass bottle, hydrogen peroxide 30%, potassium permanganate, test tube, gloves, goggles, and a spoon.

Experiment Process:

Pour 10gram potassium permanganate in the flask. Pour 10ml hydrogen peroxide from some distance using a long test tube. Water vapor and oxygen will rush out of the flask. 

Science Behind It:

I this experiment we used potassium permanganate which is an inorganic compound made up of potassium, manganese and oxygen atoms. As we know that it is a strong oxidizing agent, which means that it tends to remove electrons from the substance that it undergoes chemical reactions with.When potassium permanganate reacts with hydrogen peroxide we get an amazing reaction that produces water vapor, oxygen, and manganese IV oxide. The water vapor and oxygen gas spontaneously released in this reaction cause the smoke to erupt from the flask.

9 Jumping Sodium Experiment:

Jumping sodium in kerosene and water is an amazing experiment. This is a trick reaction, sodium metal does not react in kerosene but react in water. But water and kerosene and water have different density so kerosene always remains above water. When we drop sodium in these two liquids. Sodium jump when reacts with water and falls down when reaches in kerosene. It looks amazing.

Materials required:

Sodium metal, kerosene oil, water, test tube, knife, stand or foam

Experiment Process:

Fix test tube in foam. Fill half test tube with water and another half with kerosene. Take out sodium metal and cut very small piece using the knife. Drop the piece of sodium in the test tube. Now observe it. The Sodium piece will start jumping.

Science Behind It:

Kerosene and water have different density. They do not mix together. Sodium does not react with kerosene but reacts with water. Sodium forms alkali sodium hydroxide and hydrogen. Gas bubbles push the sodium into the kerosene layer. When it reaches in kerosene it stops the reaction and due to gravity sodium sinks back to the layer of water.  it will jump like this until it has reacted completely with water.

10 Copper Glowing Experiment

Copper glowing in acetone is an awesome science experiment. Copper glows on acetone without heating it. It looks like the glowing moon in the dark. 

Materials Required:

Acetone, beaker, heat source, and copper wire

Experiment Process:

Pour about 50 to 100ml acetone in the beaker. Heat the copper on a gas stove. When it became red hot put it on the acetone. Copper will start glowing soon.

Science Behind It:

When copper is heated in the presence of air, it turns into copper oxide, where oxygen ions from the atmosphere get attached to the heated copper forming ionic bonds. This copper oxide acts as a catalyst. In acetone’s conversion into acetaldehyde. A catalyst is a chemical that does not actually take part in a reaction but accelerates it by its presence. Copper oxide does so by providing free oxygen ions for acetone to react.

  • CH3COCH3 (g) + 3/2O2(g) –> CH3CHO(g) + CO2(g) + H2O(g)

 In the process of donating oxygen to acetone, the copper oxide turns back into copper. This reaction releases a lot of energy in terms of heat and light. 

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