Pillars of Salt — Barbara Paul

In the 21st century, young girls recieve sex education training via time travel into the minds and bodies of women who lived in previous centuries. Youngsters relive great moments in history, and adults safely experience real-life segments of the past. But nobody realizes that this great achievemant may also have its dangerous side, until Angie Patterson finds herself trapped in the body of Elizabeth Tudor. In trying to escape, she discovers a secret which could jeopardize the past, present, and future of her world.