Ancient Wonders of the World
Landforms & Natural Features
Notable Scientists and Their Discoveries
Explorers of the 15th Century
Elements and Their Atomic Numbers
100

This wonder, located in Egypt, is the only one still standing today.

What is the Great Pyramid of Giza?

100

This river is the longest in the world, stretching through Africa.

What is the Nile River?

100

This physicist is famous for his theory of relativity and the equation E=mc².

Who is Albert Einstein?

100

This Italian explorer, sailing for Spain, reached the Americas in 1492, believing he had found a route to Asia.

Who is Christopher Columbus?

100

This element, with atomic number 79, is highly valued for its use in jewelry and electronics.

What is Gold?

200

This massive mausoleum built for the Persian king Mausolus was located in present-day Turkey and gave its name to the term "mausoleum."

What is the Mausoleum at Halicarnassus?

200

This desert, located in Northern Africa, is the largest hot desert in the world.

What is the Sahara Desert?

200

This American inventor is credited with developing the first practical electric light bulb.

Who is Thomas Edison?

200

This Portuguese navigator was the first to travel around the world, though he did not survive the entire journey.

Who is Ferdinand Magellan?


200

This element, with atomic number 50, is commonly used in electrical components and is a key ingredient in solder.

What is Tin?

300

This giant statue, located in Rhodes, was once one of the tallest statues of the ancient world.

What is the Colossus of Rhodes?

300

This natural landmark, located in the United States, is a massive canyon carved by the Colorado River.

What is the Grand Canyon?

300

This British scientist is best known for his theory of evolution by natural selection.

Who is Charles Darwin? 

300

This Portuguese explorer is credited with discovering the sea route to India in 1498.

Who is Vasco da Gama?

300

This element, with atomic number 21, is used in lightweight alloys and has applications in aerospace.

What is Scandium?

400

This hanging garden, considered one of the Seven Wonders, is thought to have been located in modern-day Iraq.

What is the Hanging Gardens of Babylon?

400

This mountain range forms the border between France and Spain.

What are the Pyrenees?

400

This Italian astronomer improved the telescope and supported the heliocentric theory, leading to his trial by the Catholic Church.

Who is Galileo Galilei?

400

This Spanish explorer was the first to sail around the southern tip of Africa to reach the Indian Ocean.

Who is Bartolomeu Dias?

400

This element, with atomic number 74, is used in lightbulb filaments and has the highest melting point of any metal.

What is Tungsten?

500

This temple in Athens was dedicated to the goddess Athena and was known for its incredible architecture.

What is the Temple of Artemis?

500

This is the world’s largest coral reef system, located off the coast of Australia.

What is the Great Barrier Reef?

500

This chemist discovered the structure of DNA alongside Francis Crick in 1953.

Who is James Watson?

500

This famous explorer led the first European expedition to the Pacific Ocean.

Who is Vasco Núñez de Balboa?

500

This element, with atomic number 43, is used in medical imaging and is the first artificially produced element.

What is Technetium?

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