They have not been taught the truth. But they think they know the truth. As an analogy, many children coming through the school system think they can read but all they are doing is memorizing certain words using a look-say method. This leads to very poor reading which will top out at a certain level, yet typically the student will not seek help because he thinks he knows how to read. He just thinks he does not enjoy reading.
Science is the study of physical truth.
It should not be undermined by the teaching of half-truths. Children who are taught scientific formulas and concepts before they have learned sufficient mathematics are taught half-truths. Let's make the most of our freedom in home-schooling to give our science students the whole truth. Home Life Inc. Used by permission. Originally published in Practical Homeschooling magazine.