Do a little experiment and write about the process of the experiment Essay 300 words?

I heard that salt water can float a raw egg. I'm curious! So I wanted to do this experiment.

When I came home from school, I put down my school bag, and I asked my grandmother for a transparent glass bottle, an egg, a pair of chopsticks, and a bag of salt. Fill the glass bottle with water, then put the egg into the glass bottle filled with water, and the egg sinks to the bottom of the bottle. Then half a bag of salt was poured in, and after the salt of the white flower flower entered the water, it began to spread out under the glass bottle water, like a thick layer of white snow.

But the egg stood still. I said, "Why are the eggs still calm?"

Then my grandmother asked me to stir gently with chopsticks, and the salt dissolved into water. Eventually, the egg floated slowly!

This is because salt water is denser than slave water, which is why it is easier to float in seawater. I did this experiment to verify this scientific fact.

I'm so happy because the experiment was successful! I learned a little bit of science from this experiment.

A little experiment.

Labor produces wisdom, and practice produces true knowledge. This is the sentence I felt the most after the little experiment. The little experiment I did was "dancing confetti".

The teacher sent me palm-sized pieces of paper. I also took out a ruler, and I cut the white paper into small pieces. Everything is ready for us to start experimenting.

My white paper lay there silently, unmoving. We were puzzled, and the students only rubbed two or three times, but they were anxious and ignored the blank paper. The students came again, this time patiently, and the time to witness the miracle came, with confetti dancing and dancing.

It's all hanging dandruff grinding off, like white snowflakes. We cheered. The students tugged back and forth, and the confetti refused to come down.

The experiment was done, and I was still immersed in the fun experiment. It turns out that friction can produce static electricity, and it dawned on us. Static electricity can also be generated when you take off your sweater in autumn.

There is no lack of beauty in life, but there is a lack of eyes for discovery, as long as you pay attention to observe, you can gain something.

Title: Further study of the "soil" experiment.

Experiments comparing the weight of oil and water.

I found a clear water glass, poured half a bowl of water and oil, kept my eyes and the oil and water in the cup level, and after observation, I found that the oil was lighter than water. What an interesting experiment!

It is the sound that passes through the cotton thread into the bamboo tube.

Do a little experiment and write about the process of the experiment Essay 300 words?

I bought two magnets, take these two magnets, I want to do an experiment, because I know that magnets are magnetic, so I want to see what is iron, can be attracted by magnets, I took a nail, a needle, a screw cap, and a toothpick, a lunch box, a pair of scissors, scissors, I started to do experiments, first use the magnet to suck the nail, the nail was sucked up at once, and then use the magnet to suck the lunch box, scissors, scissors, some sucked up, some did not suck up, through this experiment, Can I tell which things are made of iron and which are magnetic? What are non-magnetic? When I sucked these two magnets, I found that the two ends of the existing are together, can be sucked together, and some cannot, by looking up the information, I know that this is called the magnet with the same pole attracts and repels the opposite pole, through this experiment, I have learned a lot of truth, understand a lot of scientific knowledge, I will continue to study hard in the future.

Discover the mysteries of science!

I read this essay and I was immediately inspired.

Take a look at the paperwork, and you'll know.

The mystery of life requires flexible eyes to see, and to use.

Small hands do it. Just yesterday afternoon, the teacher asked us to do an assignment, that is, let us do a small experiment, there is a experiment and a b.

A experiment is that I took a piece of Tianzi checkered paper, I put this piece of Tianzi checkered paper into cold water, wet it, and pressed it with my hand to obediently stick it to the wooden door, I took a fan to dry it, when it was about to dry, I fanned it hard, and the paper fell down like a butterfly, and I quickly glued this piece of paper to the wooden door again. That's when I noticed that it had changed color and turned gray, and it was amazing that the paper was still white. The paper dried, but it became crumpled.

Experiment B is the same as experiment A, I tore open a piece of Tianzi grid paper, I soaked it in cold water, put it on the table, took a thick book of Baijia surnames and put it on this paper, I patted it with my hands, like the teacher taught us to shoot, I took the book away for a minute, this paper became very flat, and then I put this paper in the refrigerator to freeze, put it overnight in the morning I got up and opened the refrigerator, and saw that the paper was dry and flat, and it was a little cold, and it was soft, as if it had not been wet.

The paper of experiment A became crumpled, but the paper of experiment B was very flat, which is amazing! The teacher told us that the paper in the refrigerator can be dehydrated evenly, which makes the paper smoother.

After observing this little experiment, I learned that there are many amazing things in life. I enjoyed this little experiment very much and would like to do some more.

A few don't get a perfect score at all.