Exploring scientific mysteries and improving students' quality
Experiment is the father of science. Asking a problem is often more important than solving it.
All reasoning must come from observation and experiment.
Touch nature with your hands.
Feel science with your heart
Truth begins with doubt, and doubt begins with experiment.
Think independently, unite and cooperate.
Bold reform, realistic innovation
Use your head, be thirsty for knowledge, and be diligent in thinking.
Correct operation and careful observation
Observe and analyze carefully
The knower is not as good as the walker.
Science is the commander and practice is the soldier.
The weight of power is known, and the degree is known.
A studious person does his best, but a good person is hard to be.
All reasoning must come from observation and experiment.
It is better to see hearsay than to see shadows.
What you hear is better than what you see, and what you see is better than what you practice.
What you get on paper is superficial, and you never know that it needs to be finished.
Seeing is better than hearing, and seeing is better than experiment.
It is better to try and be effective than to argue with empty words.
Bold exploration and repeated experiments
Exploring, seeking knowledge and understanding experiments are the magic weapon to identify mistakes.
People who are good at learning exhaust their principles. People who are good at practice seek to solve the most difficult problems.
The knower is not as good as the walker.
Practice is the sole criterion for testing truth
Discovery comes from exploration and life lies in struggle!
Understand instruments, draw circuits, and do it yourself; Recording data, drawing lines and error analysis, anyone must admit that experiment is the father of science.
All reasoning must come from observation and experiment.
Seeing is not as good as hearing, seeing is not as good as experiment.
It is better to try and be effective than to argue with empty words.
Feeling will not deceive, but judgment will deceive.
Make bold assumptions and verify them carefully.
Careful observation, careful analysis and scientific summary.
It must be stupid not to practice anything.
Correct operation and careful observation
Use your hands and brain to explore the law.
Cultivate scientific attitude and improve scientific quality
Use your head, be thirsty for knowledge, and be diligent in thinking.
Learn scientific knowledge and climb the peak of science and technology
Bold reform, realistic innovation
Think independently, unite and cooperate.
Slogan of scientific experiment Part II
1 Charge tomorrow wholeheartedly.
2. Understand things and explore the mysteries of nature.
It is better to see hearsay than to see shadows.
4 right, then know the weight, then know the length.
I. Chemical laboratory
1 Carefully catalyze to generate useful substances.
2 ? Chemistry improves the living environment and enjoys the green world.
3 chemistry is ever-changing, and experiments follow the law.
It's better to listen than to do experiments.
Two. biology laboratory
1 Love life, everything makes everything alive.
2 Explore the mysteries of life and improve the quality of life
Three. Interrogation room
1 operate correctly and observe carefully; Use your hands and brain to explore the law.
I learned from the newspaper that I didn't know it needed to be done.
Slogan of scientific experiment Article 3
Chemistry laboratory:
1, everyone has to admit that experiment is the father of science.
2. All reasoning must come from observation and experiment.
3, listening is better than watching, watching is better than practicing.
4, an armchair strategist feels shallow, I don't know if it must be done.
5. Explore, know and understand
I sit here and watch a fisherman throw like a fish.
Physics laboratory:
1, then the weight will be known and the degree will be known.
There is no other way to identify mistakes except experiments.
3. Science is the commander and practice is the soldier.
4, good learning is tireless, and good people are hard to find.
5, rumors are not as good as seeing, and immediate results are not as good as seeing.
6. The knower is not as good as the walker.
7. Experiment is the father of science.
Biology laboratory:
1, it is better to listen than to watch, and it is better to do experiments.
2. It is better to try than to talk.
3. Feeling will not deceive people, but judgment will deceive people.
4. Bold exploration and repeated experiments.
5, careful observation, careful analysis, scientific summary.
6. Everything is stupid without practice.
Chemical laboratory safety song
Fire and water are ruthless, life concerns the sky, safety comes first, and mind your own heart.
One is waterproof, the other is fireproof, the third is explosion-proof and the fourth is electric shock prevention.
Before the experiment, make preparations and complete protective equipment.
During the experiment, don't leave without permission, observe in time to prevent variation.
Leave for a short time and be looked after by peers, especially when water and electricity are cut off.
Overnight heating is the most dangerous. If you really need it, you need five risks:
Voltage regulation and transformation, relay, silicone oil hot compress, used as heat source.
No reflux, no cold water, constant temperature, you can sleep well.
Pay attention to water, connect the water pipes tightly, don't use too much water, and unplug the water pipes after work.
When using electrical appliances, the prior electricity.
Line, to prevent short circuit, to prevent leakage.
Use gas carefully, ignite it carefully, and stay away from solvents and experiments.
Open flame heating, ventilation first. High-pressure gas cylinders, put them away steadily.
Hydrogen cylinders should be operated strictly. Household refrigerator is not suitable for experiments.
The container in the box must be tightly covered, placed stably and labeled.
Highly toxic reagents are collected by special personnel, and potassium and sodium metals are stored in special places.
Don't store too many solvents. Store them in a cool place, and they will be natural in summer.
Residue waste liquid should not enter the pool, and it should be classified into different categories, and each belongs to its own day.
Keep the laboratory clean, do not eat or smoke.
Finally, leaving the room is the key, and the water and electricity shutters and brake pins are restored.
Fire-fighting equipment, regular inspection and first-aid medicines are always at hand.
In case of danger, cut off the power supply first, and alarm signals can be seen everywhere.
After singing this time, practice hard, be bold and cautious, and keep safe forever.
Famous laboratory sayings in Chinese and English (1)
1, then the weight will be known and the degree will be known.
On balance, we know its importance.
After consideration, we know that this is a shortcoming.
There is no other way to identify mistakes except experiments.
Only experiments can distinguish mistakes.
3. Science is the commander and practice is the soldier.
Science is the commander and practice is the soldier.
4, good learning is tireless, and good people are hard to find.
Find out how to learn well and how to go further.
5, rumors are not as good as seeing, and immediate results are not as good as seeing.
Seeing is better than hearing, and investing is better than seeing.
6. The knower is not as good as the walker.
Better said than done.
7. Experiment is the father of science.
Experiment is the father of science.
Famous sayings in Chinese and English laboratories (2)
1, everyone has to admit that experiment is the father of science.
Everyone agrees that experiment is the father of science.
2. All reasoning must come from observation and experiment.
All reasons must come from observation and experiment.
3, listening is better than watching, watching is better than practicing.
Seeing is better than hearing, and practice is the best.
4, an armchair strategist feels shallow, I don't know if it must be done.
One should not believe everything around him, but the truth in books.
5. Explore, know and understand
Explore the truth and seek knowledge, and you will understand why.
I sit here and watch a fisherman throw like a fish.
Onlookers-people will not experience the happiness of onlookers.
Famous sayings in Chinese and English laboratories (3)
1, it is better to listen than to watch, and it is better to do experiments.
There is nothing better than an experiment.
2. It is better to try than to talk.
Trying is more effective than empty talk.
3. Feeling will not deceive people, but judgment will deceive people.
Feelings are not always right, but judgments are sometimes right.
4. Bold exploration and repeated experiments.
Explore bravely and do experiments repeatedly.
5, careful observation, careful analysis, scientific summary.
Careful observation, careful analysis and scientific summary.
6. Everything is stupid without practice.
Without practice, everything will fail.
Famous words of literature laboratory (4)
1, chemistry is ever-changing, and experiments have rules to follow;
2. Correct operation and careful observation;
3. Use your hands and brain to explore the law;
4. Cultivate scientific attitude and improve scientific quality;
5. Use your hands and brains, be thirsty for knowledge and be good at thinking;
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;
10, chemistry improves the living environment, and * * * enjoys the green world; Science and technology create a better life and build a harmonious home.
1 1, raising a problem is often more important than solving a problem;
12, all reasoning must come from observation and experiment;
13, hearing is not as good as vision, and vision is not as good as experiment;
14, everyone has to admit that experiment is the father of science;
15. Science is the commander and practice is the soldier.