Around the World
U.S. History
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Inventors & Inventions
100

This country is home to the Eiffel Tower.

What is France?.

100

This president's face appears on the one-dollar bill.

Who is George Washington?

100

Humans need this gas to breathe. 

Humans need this gas to breathe. 

100

This man became the first President of the United States. 

Who is George Washington?

100

Thomas Edison is widely credited with improving and commercializing this invention.

What is the light bulb?

200

This city is known as the Big Apple.

What is New York City?

200

The Declaration of Independence was signed in this year.

What is 1776?

200

This planet is known as the Red Planet. 

What is Mars?

200

This person became the first African American President of the United States.

Who is Barack Obama?

200

Alexander Graham Bell is credited with inventing this communication device. 

What is the telephone?

300

Though it serves customers nationwide, TruStage calls this Midwestern capital city home.

What is Madison, Wisconsin?

300

This U.S. president issued the Emancipation Proclamation during the Civil War.

Who is Abraham Lincoln?

300

Water freezes at this temperature on the Fahrenheit scale. 

What is 32 degrees?

300

This aviator became the first woman to fly solo across the Atlantic Ocean.

Who is Amelia Earhart?

300

This invention by the Wright brothers changed transportation forever. 

What is the airplane?

400

The longest river in South America flows through this country before reaching the Atlantic Ocean.

What is Brazil?

400

This purchase from France in 1803 nearly doubled the size of the United States. 

 What is the Louisiana Purchase?

400

The process by which plants convert sunlight into energy is called this. 

What is photosynthesis?

400

This astronaut became the first person to walk on the moon in 1969.

Who is Neil Armstrong?

400

Eli Whitney is famous for inventing this machine that revolutionized cotton processing.

What is the cotton gin?

500

This is the only continent that lies in all four hemispheres.

What is Africa?

500

This battle is often considered the turning point of the American Civil War.

What is the Battle of Gettysburg?

500

This is the largest organ in the human body.

What is the skin?

500

This woman became the first female Supreme Court Justice in the United States. 

Who is Sandra Day O'Connor?

500

This inventor held more than 1,000 U.S. patents.

Who is Thomas Edison?