Lab slogan?

chemistry is ever-changing, and experiments follow the rules to explore the secrets

2. Correct operation and careful observation

3. Use your hands and brains to explore the laws

4. Cultivate scientific attitude and improve scientific quality

5. Use your hands and brains to be fond of learning and thinking

6. Learn scientific knowledge and climb the peak of science and technology

7. Science and technology create a better life and build a harmonious home

1. Asking a question is often more important than solving a problem

11. All reasoning must be derived from observation and experiment

12. Seeing is not as good as hearing, and seeing is not as good as experiment

13. Science is the commander, practice is the soldier

14. Those who know are not as good as those who act

. Repeated experiments

17. Experiments are the father of science

18. Careful observation, careful analysis and scientific summary

19. Except experiments, there is no other way to identify mistakes

2. It's better to try and be effective

21. Good scholars try their best, but good people find it difficult

21.

2. Always pay attention to personal safety and operate the experimental equipment according to the rules.

3. Pay attention to the safety of the experiment, which will be fatal if you are not careful.

4. Safety and benefit go hand in hand, and accidents and losses occur at the same time.

5, laboratory, obey the rules, chase and play is not acceptable, take care of yourself and others with morality.

6. Take it gently, put it slowly, wash your hands frequently and get plenty of ventilation.

7. Dangerous chemicals should be used strictly according to the regulations.

8. Safety awareness is in my heart, and the success or failure of the experiment is in my hands.

9, safety experiment in a few words, implementation can't be half-hearted.

1. Make safe preparations for the experiment and complete the kung fu.

11, careful, standardized operation, scientific and rigorous.

12. Observe experimental regulations and pay attention to experimental safety.

13, dangerous chemical experiments, need to wear protective dust mask.

14. You should observe the safety of the experiment, and your life is in your hands.

15, safety requirements, rules and regulations.

16. Experimental safety. You and I know it. Don't hesitate to observe it.

17. Check and test thoroughly, and the experiment is smooth and error-free.

18. There are many dangers in the laboratory, so please don't have too many hands.

19. Be careful when doing experiments and be a smart and scientific person.

2, safety awareness muddle through, push your luck with the hidden dangers.

21. Shake hands with safety is safe, and waving hands against regulations is safe.

22. Safety is gained by many people, but lost by one person.

23. There are many dangers in the laboratory, and safety is the most important and fun.