Slogan of mechanical laboratory slogan of mechanical and electrical practice room

1. Power is the first to know the weight, and then the degree is the second to know the length.

2. There is no other way to identify mistakes except experiments.

3. Science is the commander, and practice is the soldier.

4. Good scholars try their best to make sense, but good people find it difficult.

5. Rumors are not as good as rumors. Seeing the shadow is not as good as seeing the shape.

6. Those who know it are not as good as those who do it.

7. Experiment is the father of science. Chemistry laboratory:

1. Everyone has to admit that experiment is the father of science.

2. All reasoning must come from observation and experiment.

3. Hearing is not as good as seeing, and seeing is not as good as practicing. < Never know this matter must be practiced.

5. Explore, seek knowledge, be reasonable

6. as I sit here and watch a fisherman casting is only like a fish. Biology laboratory:

1. Seeing is better than hearing, and experimenting is better than seeing.

2. Arguing empty words is better than trying easily.

3. Feeling doesn't deceive people. Scientific summary.

6. Everything is sure to be stupid without practical test.

Chemical laboratory safety song

Fire and water are ruthless, life is critical, safety comes first, and mind your heart.

One is to prevent water, the other is to prevent fire, three are to prevent explosion, and four are to prevent electric shock.

Before the experiment, you should make preparations and have all kinds of protective equipment. < p Prevent sudden changes.

Leave for a short time, take care of your peers, especially pay attention to water and power failure.

Heating overnight is the most dangerous, and it is really necessary. You need five insurances:

Adjust voltage and transform, use relay, and use silicone oil hot bag as heat source.

No backflow, no water cooling and constant temperature before you can sleep.

Pay attention to water. Prevent short circuit and leakage.

Use gas carefully, ignite it carefully, and stay away from solvents and experiments.

Heat it with naked flame and ventilate it first. Keep the high-pressure gas cylinder stable and far away.

Operate the hydrogen gas cylinder strictly. Household refrigerator is not suitable for experiments.

The container in the box must be tightly covered, kept stable and labeled. < p Don't store too much, store it in the shade, and enter You Ran in summer.

Residue and waste liquid should not enter the pool, and belong to their own days.

The laboratory should be kept clean, no meals and no smoking.

Leaving the room at last is the key, and the water, electricity, air window and brake pin should be restored.

Fire fighting equipment should be checked regularly and given first aid. It can be seen everywhere.

After this song is finished, it is earnest in practice, bold and cautious, and always safe. 1. Degree and then know the length.

Having weighted it we know is importance.

Having considered it we know is drawback.

2. Besides experiments, There is no other way to identify mistakes.

Nothing but experiment can distinguish mistakes.

3. Science is the commander. Practice is a warrior.

Science is a commander while practice is a soldier.

4. Good scholars do their best, but good people find it difficult.

Find out how to learn to learn well, Find out how to go to go farther.

5. It's better to see it with your own eyes than to hear it. Seeing the shadow is not as good as seeing the shape.

Seeing is better than hearing and investing is better than seeing.

6. Those who know are not as good as those who do.

To do is better than to say.

7, Experiment is the father of science.

Experiment is the father of science.

1. Anyone has to admit that experiment is the father of science.

Any one has been admitted an experiment is the father of science.

2, All reasoning must come from observation and experiment.

All of the reasons must come from observation and experiments.

3. Seeing is better than hearing. Seeing is better than practicing.

Seeing is better than listening while practicing is the best.

4. What you get on paper is shallow. Never know this matter must be done.

One should't believe everything He closes one self rather than truths from books.

5. Explore, seek knowledge and understand

Explore truths, Seek knowledge and you'll understand reasons.

6. as I sit here and watch a fisherman casting, just like a fish.

Lookers-one will not experience happiness of observers.

1. Seeing is better than hearing. At first sight, it's better than experiment.

Nothing is better than experiments.

2. It's better to try and be effective than empty words.

Try is more effective than empty words.

3. Feeling doesn't deceive people. Judgment will deceive people.

Feeling is not always right but judging some times.

4. Bold exploration and repeated experiments.

Explore Bravely and Do Experiments Repetitively.

5. Careful observation and careful analysis. Scientific summary.

Careful observation, conscientious analysis and scientific summary.

6. Everything is sure to be stupid without practice.

Without practice, everything proves to be failure 1. Chemistry is ever-changing, and experiments follow the rules; 2. Correct operation and careful observation; 3. Use your hands and brains to explore the law; 4. Cultivate scientific attitude and improve scientific quality; 5, use your hands and brains, be eager to learn and think; 6. Learn scientific knowledge and climb the peak of science and technology; 7, bold reform, realistic and innovative; 8. Explore the mysteries of life and improve the quality of life; 9, independent thinking, unity and cooperation; 1, chemistry to improve the living environment, * * * enjoy the green world; Science and technology create a better life and build a harmonious home. 11. It is often more important to ask a question than to solve it; 12, all reasoning must come from observation and experiment;

13. Seeing is better than hearing, and seeing is better than experimenting; 14. Everyone has to admit that experiment is the father of science; 15. Science is the commander and practice is the warrior;