Scientists discovered ferro­electricity in 1920; since then, dozens of ferroelectric materials have been found. Some even have practical uses — in memory storage devices, for instance.

Mystery Science, a website that provides science lessons for school-age kids, has lots of really cool free modules, including a great activity (click the link) about “energy, motion ...

In fact, physics has been the least popular STEM (science, technology, engineering, and mathematics) major for US undergraduates since the late '60s. For starters, Rovelli is an expert on the topic.