Hold on! FactChecka just read on a scribbled note that the moon is made of cheese! Before she packs her crackers, she knows she needs to check that information in a trusted place. A) The Story of How to Be a Truth Detective. B) A website says all dogs can talk. To check this fact, is it better to look in a science book or ask your own dog? C) Let's check a fact: Do penguins live at the North Pole?