Trivia of the Week: Gills

How can fish breathe underwater? They have gills instead of lungs. Lungs are organs that extract oxygen from air. Gills do the same with water. The slits on either side of a fish’s head are its gills, but other animals have gills that look different....

Idiom of the Week: Crack the Case

“The witness gave the police enough information to find a clue that cracked the case.” A “case” here refers to a mystery or a crime. Think of it as a hard nut that is impossible to open by hand. A good clue makes a crack that allows you to open it all the way....

Word of the Week: Absolutely

“Are you going to read the next book in this series when it comes out?” “Absolutely!” “There are absolutely no monsters under the bed.” “Absolutely” can be a more enthusiastic way to say “yes”. It can also emphasize that something is 100% true—not mostly true but...

Phrase of the Week: Fend for Yourself

“After they leave their mother, the young animals must fend for themselves.” “Fend” is a word that doesn’t appear by itself, but it appears in this common phrase meaning “look out for/take care of oneself”. It originally came from the word “defend”....