Famous Scientists
Mythical Creatures
Inventions and Inventors
World Rivers
Space Exploration
100

This German-born theoretical physicist “father of modern physics” developed the theory of relativity.

Who is Albert Einstein?

100

A creature that breathes fire and often guards treasure.

What is a dragon?

100

This American is credited with inventing the light bulb.

Who is Thomas Edison?

100

This river is the longest in the world, flowing through northeastern Africa.

What is the Nile?

100

This planet is known as the “Red Planet” for its eponymous look.

What is Mars?

200

This Polish-French physicist discovered radium and polonium, becoming the first woman to win a Nobel Prize.

Who is Marie Curie?

200

This winged horse appears in many Greek myths.

What is a Pegasus?

200

Alexander Graham Bell is famous for inventing this communication device in 1876.

What is the telephone?

200

The Amazon River, known for its massive rainforest, is primarily in this country.

What is Brazil?

200

This is the first artificial satellite ever launched into space, sent up by the Soviet Union in 1957.

What is Sputnik 1?

300

This English naturalist is best known for his work on the theory of evolution and the book On the Origin of Species.

Who is Charles Darwin?

300

A large lake monster said to live in Scotland.

What is the Loch Ness Monster?

300

In 1928, Alexander Fleming discovered this substance, which became the world’s first widely used antibiotic.

What is penicillin?

300

This river begins from the Swiss Alps and empties into the North Sea near Rotterdam in the Netherlands.

What is the Rhine?

300

This term describes a vehicle that travels beyond Earth’s atmosphere.

What is a spacecraft?

400

This Italian physicist and astronomer improved the telescope and made groundbreaking observations of Jupiter’s moons, supporting the heliocentric model.

Who is Galileo Galilei?

400

A sea monster from Greek mythology that lured sailors to their doom with her enchanting singing.

What is a siren?

400

This Serbian-American inventor is credited with developing the alternating current (AC) electrical system that powers homes and cities today.

Who is Nikola Tesla?

400

This river is the longest in the United States and goes through states such as Montana, North Dakota, South Dakota, Nebraska, Iowa, and Kansas.

What is the Missouri River?

400

Launched in 1990, this telescope has provided some of the most detailed images of distant galaxies and nebulae, greatly expanding our understanding of the universe.

What is the Hubble Space Telescope?

500

This Polish polymath proposed the heliocentric model of the solar system, challenging the geocentric view in the 16th century.

Who is Nicholas Copernicus?

500

This winged, fire-breathing reptile is often slain by knights in European legends.

What is a wyvern?

500

This American inventor created Morse code in the 1830s, which was later used in electrical telegraphs, radio waves, and visual signals, revolutionizing long-distance communication.

Who is Samuel Morse?

500

This river, originating in Switzerland, flows through France and eventually into the Mediterranean Sea.

What is the Rhône?

500

This Soviet man was the first man in space, who launched into orbit aboard the Vostok 1 spacecraft on April 12, 1961.

Who is Yuri Gagarin?