7 Cool Chemistry Experiments to Surprise All

7 Cool Chemistry Experiments to Surprise All: Chemistry is a wonderful and important science that teaches us about substances and their different characteristics. It provides us an opportunity to know about those things which cannot be seen by us directly, but when we conduct chemical experiments on them, they are presented to us in a new form. Based on the studies done by the experts in chemistry, some amazing experiments have been developed which are suitable to make the students understand the results of chemical reactions. In this article, we will discuss some fun and educational experiments of chemistry that students can do on their own to gain a deeper understanding of science.

These chemistry experiments are not only interesting for students but are also easy to understand as they provide scientific explanations of the experiments. However, before performing these experiments, it is essential that you perform them either under the guidance of your teacher or under the supervision of your parents. So, let’s know about some exciting and fun chemistry experiments.

1. Rubber Bouncy Egg

We all know that eggs break when they fall on the ground, whether from a small height or a large one. But, what if we can prepare the egg in such a way that it can bounce without breaking? For this experiment, you only need two things – vinegar and a glass bottle. Vinegar contains acetic acid (CH3COOH), which reacts with the calcium carbonate present in the egg shell and dissolves it. As a result, the outer shell of the egg is removed and only the soft, pliable yolk remains, which becomes bouncy. This is a very fun and simple experiment that you can easily do at home.

2. Nitric acid and copper

This experiment uses nitric acid, so it should be performed only in a chemistry lab. Nitric acid is light brown in colour, while pure nitric acid is colourless. When copper is added to nitric acid, it first turns green and after a while it turns brownish green. If this solution is diluted, it becomes a blue coloured solution. This colour change is due to the chemical reaction between copper (Cu++) and nitrate (NO3-) ions.

3. Potassium iodide (KI) and hydrogen peroxide (H2O2)

You might have seen this experiment before as it is one of the famous chemistry experiments, shown in science shows as a volcano demonstration. When potassium iodide and hydrogen peroxide react, their mixture produces a lot of foam. It is also called ‘elephant’s toothpaste’. This reaction occurs when yeast and hydrogen peroxide are mixed, which releases a lot of oxygen and causes foam to form. This experiment is great for students to learn about chemical reactions.

4. Writing a Secret Message

Have you ever dreamed of writing a secret message that only you and your friends can read? All you need is a lemon, a piece of paper, and a Q-tip. First, cut the lemon in two and squeeze out its juice and put it in a cup. Then, dip the Q-tip in the lemon juice and write something on the paper. When the message dries, place the paper under a candle or bulb. You will see your secret message slowly appear. This is a simple and fun chemistry experiment that can be done at home.

5. Making Smoke with Dry Ice

This is another amazing experiment that uses the chemical properties of dry ice. Dry ice is cooled carbon dioxide gas (CO2) with a temperature of -109°F. This experiment can be done in chemistry labs, but be careful not to touch it directly with your hands as it can cause cold. When dry ice is put into water, it releases carbon dioxide gas, which creates thick smoke. This process is completely safe, but you should do it carefully.

6. Toothpaste and Vinegar Experiment on Egg

This is another fun experiment that involves egg, toothpaste and vinegar. Just like it was mentioned earlier that vinegar dissolves the outer shell of the egg, in this experiment when toothpaste is applied on one part of the egg, vinegar does not affect that part. This is because the chemical compound calcium fluoride present in the toothpaste prevents the outer calcium carbonate of the egg from reacting with the acid of vinegar. With this experiment, we can see one half of the egg without the shell.

7. Burning Metal in Water

This is one of the most interesting and educational experiments of chemistry. When alkaline metals such as potassium, sodium, or lithium are added to water, they start burning and burn in different colours. The burning of these metals emits hydrogen gas and it reacts chemically in water. This experiment shows that water is usually used to extinguish fire, but here water is used to burn metal.

Conclusion

These chemistry experiments are not only informative for students but also teach them how small chemical changes can produce big and interesting results. Some experiments can be done at home, while some require you to work in a laboratory with proper safety equipment. Through these experiments, students can understand the basic principles of chemistry and develop more interest in the science of it.

Studying chemistry not only increases knowledge but it is also a wonderful way to understand the world around us in a better way.

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