True or false? Real or fiction? FACT OR FIB? Find out about science and the world around us . . . all by playing a game! Each book in this brightly illustrated and entertaining new series gives kids (and adults， too!) lots of chances to test their smarts. What's right and what's wrong?： Mars is the hottest planet. Your nose can remember 50，000 different scents. Some modern artificial hands are controlled by the patient's own muscles. Check it out， take a guess， and see how you do! These fun statements cover space， the human body， and technology. Each ?fact or fib? features three statements?but only two are totally true， while the third is outrageously false. Make your choices， turn the page， and see whether you're right or wrong， along with more cool facts about the topic.