"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Stay sharp and learn something new every day or stock up on knowledge for the next 105 days with these ...

Impress your kids with fun facts that are both age-appropriate and surprising. Did you know that ketchup was once sold as medicine in the 1800s, or that Earth has more trees than stars in our galaxy?

Find out how much you know with these random facts and trivia questions on movies, music, history, science, geography and so ...

Add Yahoo as a preferred source to see more of our stories on Google. You’ll discover that the world is full of unique and extraordinary things that you never knew about before. And before you know it ...

As research lab technician, I want to foster my children's love for science through fun activities. We're big fans of age-appropriate science podcasts and silly experiments. It's easy — and fun — to ...

Stay sharp and learn something new every day or stock up on knowledge for the next 105 days with these fun facts about life, history, food, and more. Although “fun” is in the name, don’t be fooled.