I am Isaac Newton Xavier tries mini golf for the first time, and things don't exactly go as planned. No matter how hard and fast he swings, the ball never goes in the hole... To the Secret Museum! Our trio are sent back in time to meet an expert in the laws of motion: Sir Isaac Newton. Isaac is in the middle of his own problem, trying to figure out how he can out jump boys who are clearly bigger than him. Instead of attacking the problem hard and fast, Xavier style, Isaac takes a much calmer approach with the use of a thinking tree and a thinking kite. When he finally solves his problem and wins the long jump competition, Xavier realizes how much better it is to slow down and think through problems. I am Golda Meir When Yadina finds turtles crossing the bike path in the park, she becomes very worried about them - what if they get hit by a bike? Or a trike? She wants to help them stay safe, but what can she do? This problem seems way too big for her. To the Secret Museum! Our heroes go back in time to meet an expert problem solver: Golda Meir. They find Golda in the midst of a big problem herself: a bunch of the kids at her school don't have access to the books they need! This is another toughie. But Golda, undaunted, comes up with the idea to hold a community fundraiser to get money for the books, showing Yadina that she should tell people when there's a problem so you can solve it together.