History
This ancient wonder of the world is located in Egypt.
What are the Pyramids?
This gas makes up about 78% of Earth's atmosphere.
What is nitrogen?
This country has the most population in the world.
What is India?
This war lasted from 1939 to 1945.
What is World War II?
This planet is known as the Red Planet.
What is Mars?
This ocean is the largest on Earth.
What is the Pacific Ocean?
This person was the first President of the United States.
Who is George Washington?
This is the chemical symbol for water.
What is H2O?
This is the longest river in the world.
What is the Amazon River?