Essay on doing experiments, how to write an essay about doing experiments

How to write an essay about doing an experiment is as follows:

There are endless mysteries in life waiting to be discovered, just look at them with your dexterous eyes. Just yesterday, the teacher gave us an assignment to do a little experiment.

When I got home, I couldn't wait to grab a piece of paper and wet it. When my father came back, I hurriedly ran over and said, "Dad, can you help me dry this piece of paper?"

Hong Fangzi's father said to me, "You go and boil a pot of water." "Why would Daddy boil a kettle of water?"

I asked. Dad said again, "The water is boiled, and the paper is dry." "Because I didn't understand what my father meant, I had to boil the water in disbelief, and after a few minutes the water boiled, and my father asked me to bring the water, and it turned out that my father was going to use a kettle to dry the paper.

I've experimented, but I'm still not satisfied. So I took another piece of wet paper, and I brought a book, put the paper in and flatten it, put it in the fridge, and left it alone. The next morning, when I went downstairs, I saw that the paper in the refrigerator had become soft, like a white cloud, and it was very cold and comfortable to the touch, and it was still flat and neat.

The other is crumpled and hard. I asked my dad why the two sheets of paper were different, and he said, "Because when you put the paper in, the cold air in the refrigerator will condense the dripping water into ice, and wash it to the effect of dehydration evenly, so the paper in the refrigerator will be flat."

> it turns out that this little experiment made me know the mysteries of life, which we need to use our brains and observe more to discover.

The essay on the experiment is as follows:

1. On Sunday morning, I did a wonderful experiment in my room. First, I put two raw eggs in two clear cups, and I put a little more salt in the first cup to see what happens. It's been almost half an hour, and there is still no change, and I am very annoyed that I have returned:

Why is it that after so long, there is still no result, is there something wrong with this egg! ”

I changed one egg after another, and suddenly, I wanted to try and put more salt to get results, I put a lot of salt and still didn't succeed, I got angry,"Boom"! I threw the eggs in a cup with salt and something strange happened. Finally, there was a result, it turned out that the density of salt water was greater than that of fresh water, so the density of salt water could defeat the raw eggs of the locust to float, but the raw eggs of fresh water were poured into the cup and remained motionless.

Wow! It turns out that the experiment is so interesting, it's like the yellow color and the red color are drawn together, and it turns orange, and that's science, and it created the wonderful world we have now.

2. I looked around and hesitated for a moment and felt that the light was too bright to shine. I pulled the curtains down. I took out a mirror, turned on the lamp, put the mirror in front and shook it, and a white shadow was reflected on the wall, it was so funny!

I took a big mirror, and in a moment the shadow became larger, and the surroundings were brightly illuminated, like a flashlight. I hid the mirror behind my back, and the white shadow disappeared at once, and when I took it out again, the white shadow reappeared, like a naughty child jumping up, it was so funny.

Essay on <> Experiment Part 1

I've always wondered how volcanoes erupt. Today, I did an interesting little experiment to ** after all. I prepared 10g of baking soda, 20ml of white tone and 210ml of dish soap, stirring stick, and a cola bottle.

As soon as I was ready, I was eager to start my experiments as soon as possible. I poured 10ml of dish soap into the bottle, added red ingredients to make the effect more realistic, then stirred well with a stir bar, then poured in baking soda, and finally, the moment to witness the miracle was almost here, and I was very skeptical that it would erupt. I held my breath and carefully poured the white vinegar into the bottle, and in an instant, the red "magma" spewed out, and I shouted:

I did it! I did it! I pulled my dad and ran to the eruption site, and at this time, a large side of the coffee table was covered with "magma", and I said excitedly

Look! The volcano has erupted! Dad said in a loud voice

Not bad! Not bad! "Why is that?

How did this bubble form? I learned through searching that baking soda is an alkaline salt, and when it encounters acidic vinegar, it will undergo a chemical reaction, producing a large amount of carbon dioxide gas, which is a digasified carbon dioxide gas, and after encountering dish soap, it will produce a lot of foam.

Essay on the experiment 2

This afternoon, my mom and I did a science experiment, and we did a lot, the most interesting of which was "a floating needle". I found a large bowl filled with water, threw the needle directly into the bowl, and it sank to the bottom and cracked wide. This is the normal state of a needle.

The next experiment we have to do is to cut a small square of paper and put it on the water, then put the needle on the paper, wait for the water to soak the paper, and carefully press one corner of the paper with your hand to let the paper sink slowly, at this time the needle will float on the water. When we made it, the paper did not sink like the book, but it still floated on the water, and then we were afraid that the needle would sink it, so we carefully removed the paper.

There are a few times when you press the paper by hand, the needle always sinks with the paper, so it would be nice to do it a few more times. At this point, a drop of laundry detergent was dropped into the water, and the needle sank to the bottom again. The book says that the needle can float on the surface of the water because of the tension of the water, and after adding laundry detergent, the tension of the water is destroyed, and the needle sinks.

The experiment is done, so interesting!

Doing experiments is one of the important aspects of science learning. In experiments, we can verify or falsify a hypothesis or theory by observing, measuring, and recording data. The following is an essay about doing experiments, I hope it will be helpful to you.

Doing experiments is an integral part of science learning. In the experiment, we can gain an in-depth understanding of the laws of nature and scientific principles through hands-on experience and observation. Before conducting the experiment, we need to read the experimental instruction book carefully and prepare the required materials and equipment.

During the experiment, we need to carefully observe each step and operate according to the requirements in the instruction book. If you have any questions or are not clear, you should ask your teacher or classmates for advice. At the same time, it is necessary to pay attention to safety when conducting experiments to avoid accidents.

After completing the experiment, we need to carefully record the data and results, and analyze the patterns and problems in them. If there is a result that is not as expected, we need to re-examine the operation process and find out what the problem is.

In short, experimenting is a very important part of science learning. Through personal experience and observation, we will continuously improve our scientific literacy and ability in the process of natural laws and scientific principles.