Universe
This river is the longest in the world, flowing through countries like Egypt and Sudan.
Nile River
This African country is home to the pyramids of Giza
Egypt
This city, known as the "Eternal City," is the capital of Italy and was the center of the ancient Roman Empire.
This is the largest country in the world by land area.
Russia
This country is the largest in Africa by land area.
Algeria
This British prime minister served during World War II and delivered the famous speech, "We shall fight on the beaches."
Winston Churchill
This American actress won the Oscar for Best Actress for her role in The Blind Side in 2010.
Sandra Bullock
This South African leader was imprisoned for 27 years before becoming the first black president of South Africa.
Nelson Mandela
This Italian explorer is credited with discovering the Americas in 1492.
Christopher Columbus
This physicist developed the theory of general relativity, changing our understanding of space and time.
Albert Einstein
This empire, ruled from 1299 to 1922, was known for its military prowess and its control over parts of Europe, Asia, and Africa.
Ottoman Empire
The year the Titanic sank after hitting an iceberg.
1912
The United States declared its independence from Britain in this year.
1776
The Cold War was primarily a conflict between these two superpowers.
The United States and the Soviet Union
The Berlin Wall, which divided East and West Germany, fell in this year.
1989
This is the most abundant element in the Earth’s crust, making up about 27% of it.
Oxygen
This is the only planet in the solar system that rotates on its side.
Uranus
The process by which water is cycled through the environment, including evaporation, condensation, and precipitation, is known as this.
Water Cycle
This scientist is famous for his laws of motion and the law of universal gravitation.
Isaac Newton
The process by which plants make their own food using sunlight is called this.
Photosynthesis
This invention by James Watt in 1776 helped power the Industrial Revolution and was essential for factories and transportation.
The steam engine
This famous inventor created the first practical electric car battery and contributed to the development of the modern electric vehicle.
Nikola Tesla
This machine, invented by Johannes Gutenberg in the 15th century, greatly impacted the spread of knowledge by allowing for mass production of books.
Printing press
This device, invented by Alexander Graham Bell in 1876, revolutionized communication by allowing people to speak to each other over long distances.
Telephone
This device, invented by Thomas Edison, helped to illuminate homes and businesses, marking a major advancement in electric lighting.
The light bulb