The Twenty-One Balloons

"The Twenty-One Balloons" is based on a true story.

• True

• False

What is the name of the mountain that erupts at the end of the story, as mentioned in the Introduction?

• Mt. St. Helens

• Vesuvius

• Krakatoa

• Mt. Bachelor

Fill in the blank with the word that makes the most sense: "Will you please _______ to the President this message and my sincere thanks for the honor he has bestowed on me by sending me this gracious invitation."

• push

• convey

• retract

• illustrate

What does it mean to "wire" something, in this book?

• To send a message by telegraph

• To download something

• To play a game online with friends

• To talk on the phone

Why will Professor Sherman not tell his story to anyone?

• He does not have a story to tell

• He promised his brother he wouldn't tell

• Mr. F told him not to

• He promised the Explorer's Club they would be first to hear the story

What did Sherman ride back to San Francisco?

• An airplane

• A boat

• a balloon

• The presidential train

How does Professor Sherman’s balloon eventually pop?

• A seagull pierces it with its beak.

• A stray arrow punctures it.

• A shark leaps from the water and tears a hole in it.

• It does not pop

What kind of businesses do the people of Krakatoa own?

• Pet Shops

• Restaurants

• Clothing Store

• Construction Companies

What do the children of Krakatoa design for their entertainment and amusement?

• A water ride

• A roller coaster

• bumper cars

• a balloon merry-go round

What family stays with Professor Sherman when the others jump off the balloon platform?

• No one

• The D Family

• The F Family

• The A Family