I found the secret composition of 300 bubbles.

On Saturday morning, my mother and brother and I watched a scientific experiment in a book, and I found the secret of bubble water. So, we prepared shampoo, detergent, glycerin, straws and water according to the instructions in the book.

Let's start the experiment. Prepare the bubble water first. Firstly, 2 parts of shampoo, 2 parts of detergent, 6 parts of water and 1-4 parts of glycerol are poured into the bottle respectively in proportion, and then stirred evenly with a straw, and the bubble water is prepared.

After the bubble water was made, we began to blow bubbles. At first, my brother and I didn't know how to blow bubbles as big as pearls. Later, we saw that my mother blew a big bubble and asked my mother, "Mom, why did you blow such a big bubble?" Mother told us, "You should blow gently and slowly." According to our mother's instructions, we really blew out big bubbles. Just as we were having fun, my father came. He asked us to ask each other questions about blowing bubbles. I discovered the secret of bubble water. The younger brother asked, "Why are bubbles colorful?" Mom asked, "Why do you want to add glycerin and shampoo to the bubble water?" When it was my turn, I asked loudly without hesitation, "How can I blow a small bubble into a big one?" Then, dad said, "Now, you can solve your doubts." As soon as my father finished, I raised my hand high, eager to get an answer as soon as possible. Dad invited me, and I showed my problem-solving process through a demonstration. I dipped in bubble water first and blew out a big bubble. After the big bubble is formed, I dip a straw in some bubble water, insert it into the big bubble, and then blow out a small bubble. The big bubble covers the small bubble and appears in front of everyone. At this time, my father, mother and brother warmly applauded me.

Later, the problems of my brother and mother were solved one by one. Bubbles are colorful because of the fusion of various liquids; And why add glycerin? It is to make bubbles not easy to break and can be quickly formed.

This scientific experiment is really interesting.