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What river carved out the Grand Canyon?
Colorado River
What measure of energy comes from the Latin word meaning 'Heat'?
Calorie
What is the tallest building in the U.S.?
One World Trade Center
The West Indies is another name for what?
The Caribbean
What island is located just off the toe of the Italian boot?
Sicily
What is the official currency of the United Kingdom?
Pound sterling
What is the only continent that does not have a rainforest?
Antarctica
How many sides does a scalene triangle have?
Zero
What is the river that goes through Colorado and New Mexico that creates the border between the U.S. and Mexico?
The Rio Grande
In what war did the U.S. fight itself?
Civil War