Perhaps you can quote or show that “state charter”? The school has a state charter and the foundation by law has it’s bylaws but what is the charter of the Center that prohibits “non-secular” activities?
Either you are sloppy or intentionally misrepresenting my statement;
1) There is no "state charter". There is the CA constitution and CA state law. You can find it all at http://www.leginfo.ca.gov/calaw.html
2) The California Science Center is NOT a school.