Laboratory slogan

1. Everyone must admit that experiment is the father of science.

2. All reasoning must be derived from observation and experiment.

3. Hearing with the ears is not as good as seeing with the eyes, and seeing with the eyes is not as good as practicing with the feet.

4. What you learn on paper will eventually make you realize it, but you will definitely know that this matter must be done in detail.

5. Exploring, seeking knowledge, and understanding

6. Sitting and watching the fishermen is just envy of the fish.

Physics Laboratory:

1. The right will tell the severity, and the degree will tell the length.

2. There is no other way to identify errors other than experimentation.

3. Science is the commander and practice is the warrior.

4. A good scholar will do his best, but a good practitioner will find it difficult.

5. Hearings are not as good as seeing them, and seeing shadows is not as good as observing shapes.

6. Those who know are inferior to those who practice.

7. Experiment is the father of science.

Biology Laboratory:

1. Hearing is not as good as seeing, and seeing is not as good as experimenting.

2. It is better to try and get results than to make empty claims.

3. Feelings do not deceive people, but judgments do.

4. Boldly explore and experiment repeatedly.

5. Observe carefully, analyze carefully, and summarize scientifically.

6. It is foolish to conclude that everything is not tested in practice.

Chemical Laboratory Safety Song

Fire and water are merciless, human life is at stake, safety first, keep it in your heart.

The first is to prevent water hazards, the second is to prevent fire hazards, the third is to prevent explosions, and the fourth is to prevent electric shock.

Before the experiment, prepare in advance, and all protective equipment is available.

During the experiment, you are not allowed to leave without permission, and you must observe in time to prevent mutations.

Leave for a short time and be looked after by your companions. Pay special attention to the water and power outages.

Heating overnight is the most dangerous. If this is really necessary, five insurances are required:

Regulate the voltage, use relays, and silicone oil heat packs as heat sources.

No reflux, no water cooling, and a constant temperature before you can sleep peacefully.

Be careful when using water, keep the water pipes tightly connected, do not use too much water, and remove the pipe after get off work.

When using electrical appliances, check the wires first to prevent short circuits and leakage.

Use gas with caution, be careful of ignition, stay away from solvents, and stay away from experiments.

Heat with open flame and ventilate first. High-pressure gas cylinders, keep them safe and far away.

Hydrogen cylinders must be handled strictly. Household refrigerator, not suitable for experiments.

Containers in the box must be tightly closed, placed stably, and labeled.

Highly toxic reagents should be collected by designated personnel, and metal potassium and sodium should be stored at designated points.

Do not store too much of various solvents, and store them in a shaded place, especially in summer.

Residues and waste liquids cannot be put into the pool. They should be sorted into categories and returned to their respective places.

The laboratory must be kept clean and tidy. No eating or smoking is allowed.

Leaving the room in the end is the key. The water, electricity, windows and gate pins are restored.

Fire-extinguishing equipment should be inspected frequently and first-aid medicines should be kept at hand.

In case of danger, turn off the power first. The alarm number can be found everywhere.

After this song, practice it seriously, be bold and careful, and stay safe forever