Tranquility is a sense of peace and quiet. It is the feeling you have while sitting under a starry sky, listening to the crickets. ...

A swamp is an area that floods every year because the land is low. Watch out for alligators if you visit Atchafalaya National Wildlife Refuge in Louisiana, the largest swamp in the United States.

If people are laughing at you, making fun of you, and acting as if you're worthless, they're treating you with derision. Derision is mean and attacking — it's a form of contempt. ...

That thing that happens when somehow you know in your head exactly what your brother wants for dinner even though he hasn’t said a word? ...

A jungle is a forest thick with trees, other plants, and animals. ...

What do you have in common with your hamster, a whale, a bat, a giraffe, and the kid who packs your groceries? Everyone is a mammal — a hairy, warm-blooded, milk-drinking vertebrate, just like you. ...

Sediment is the accumulation of sand and dirt that settles in the bottom of lakes. Sediment is also what you get in the bottom of a glass of iced tea when the sugar doesn’t all dissolve.