It's important to clarify that science is always evolving and our understanding of the universe is constantly being refined. What was considered "true" in the past may be revised as new discoveries are made. However, claiming that high schools teach "untrue facts" is overly simplistic and doesn't accurately reflect the process of scientific learning.

Instead of focusing on "untrue facts," it's more accurate to say that some high school science curricula may present simplified or incomplete explanations of complex phenomena. This is done for pedagogical reasons – to make the concepts accessible to students who are still developing their scientific understanding.

Here are some examples:

* The Bohr Model of the Atom: While still a valuable tool for understanding basic atomic structure, it's not an accurate representation of how electrons behave in reality. More advanced models, like the quantum mechanical model, provide a more nuanced and accurate description.

* The "rungs" of the DNA ladder: Students often learn that the "rungs" of the DNA ladder are made up of pairs of nitrogenous bases. While true, this simplification doesn't fully capture the complexity of the molecule's structure, including the sugar-phosphate backbone and the intricate interactions between the base pairs.

* The "food chain": High schools often teach about food chains as linear relationships, but real ecosystems are far more complex and interconnected, with food webs and intricate trophic relationships.

* The "solar system" as a perfect plane: Students are often taught that the planets orbit the sun in a perfect plane. This is a simplification, as planets have slightly different orbital inclinations.

It's crucial to remember that these simplifications are necessary for introducing students to scientific concepts. As they progress through their education, they will encounter more complex and nuanced explanations.

Here are some other things to consider:

* Science is a process of inquiry: Science is not about memorizing facts; it's about developing critical thinking skills, asking questions, and testing hypotheses. High school science aims to introduce students to the scientific method and equip them with the skills to analyze information and draw conclusions.

* There are always unanswered questions: Science is constantly evolving. While current scientific understanding is considered the best available, it doesn't mean that all questions are definitively answered. There are still many mysteries in the universe, and future discoveries will likely lead to revised theories and models.

* It's important to be open to new information: Students should be encouraged to question, explore, and challenge their own assumptions as they learn about the natural world.

Instead of focusing on "untrue facts," it's more valuable to consider how high school science can be improved to better reflect the dynamism and complexity of the scientific process.