Round the number 551 to the nearest ten. Spell the five-letter word that means the opposite of “wrong.” After Congress app...more
It’s January and the outside temperature is 29 degrees C. Are you in Alaska or Hawaii? Round $21.87 to the nearest dollar....more
Where can you see stalactites and stalagmites? In the Civil War, what army was commanded by Robert E. Lee? What’s a quicke...more
In what country can you visit the cities of Glasgow and Edinburgh? How many cells does an amoeba have? Find a tall buildin...more
Which has the most gravity: a supernova, a white dwarf, or a black hole? What prefix turns the word “town” into a word mea...more