Complex sentence: Later, another segment is shown, called Charlie's Experiment/Tip. It is much longer than the mini segments shown throughout the show, and it involves Charlie demonstrating an experiment, or he answers frequently asked questions about science topics related to the episode topic.
Split into simpler sentences: Later, another segment is shown, called Charlie's Experiment/Tip. It is much longer than the mini segments shown throughout the show, and it involves Charlie demonstrating an experiment. Sometimes he answers frequently asked questions about science topics related to the episode topic.