It is possible for teachers to make mistakes, as they are human. However, it is important to remember that scientific concepts are constantly evolving and new information may be discovered. It is always a good idea to do your own research and consult multiple sources to ensure accuracy.
If you are unsure about a scientific concept your teacher has taught, you can do some additional research to verify the information. Look for reliable sources and compare the information to what your teacher has told you. If you find conflicting information, it is worth discussing with your teacher to clarify any misunderstandings.
It is important to approach questioning your teacher's knowledge with respect and a desire to learn. If you have done your own research and have evidence to support your questioning, it is appropriate to politely bring it up in class or during office hours to seek clarification.
If you have concerns about the accuracy of your teacher's teaching, it is best to discuss it with them in a respectful and polite manner. You can also bring it to the attention of a school administrator or department head if needed.
As long as you approach questioning with respect and a desire to learn, it should not impact your grades. Teachers appreciate students who are curious and willing to engage in critical thinking. However, if you feel that your grades are being unfairly impacted, it is important to bring it to the attention of a school administrator or department head.