Animals
World Geography
Sports History
Famous Inventions
Science and Nature
100

The only species of bird known to fly backwards. Some might say that it "hums". 

What is a hummingbird?

100

This U.S. state has the longest coastline of over 6,600 miles.

What is Alaska?

100

This runner sped her way into the record books and overcame polio to become an Olympic legend.

Who is Wilma Rudolph?

100

This ancient civilization didn’t just trade goods—they traded letters and sounds, leaving behind an invention that changed communication forever.

Who are the Phoenicians?

100

This shiny element is highly valuable, and you might just find it at the end of a rainbow.

What is gold?

200

The animal with the longest lifespan on Earth, living over 200 years. 

What is a bowhead whale?

200

This mountain range separates Europe from Asia. 

What are the Ural mountains?

200

The first World Cup went to this South American country, where soccer is a national passion.

What is Uruguay?

200

Imagine coal-powered engines puffing steam, fueling factories and trains during the Industrial Revolution. This invention by James Watt was the spark that ignited it all!

What is the steam engine?

200

You’re breathing it right now! It makes up nearly 80% of the air around you.

What is nitrogen?

300

The largest living reptile on the planet. 

What is the salt water crocodile?

300

Deep down in the Pacific, there's a spot so dark and remote, no sunlight ever reaches it. Only the bravest explorers dare to dive to its depths.

What is the Marianas Trench?

300

This sport goes way back in history and had a brief timeout from the Olympics in 1900. But now, it’s back!

What is wrestling?

300

Though it sounds dangerous, this invention was originally meant to help build things, not destroy them.

What is dynamite?

300

This dusty neighbor in the solar system has a distinct red color. It’s the planet humans are dreaming about visiting next!

What is Mars?

400

This animal's fingerprints are so similar to humans that they've been confused at crime scenes, mainly in Australia. 

What is a koala bear?

400

This African country is bustling with life—it's home to the largest population on the entire continent and the city of Lagos, one of the fastest-growing cities in the world. 

What is Nigeria?

400

This tennis player broke barriers, serving up history as the first African-American male to win a major title.

Who is Arthur Ashe?

400

The co-founder of this company started quite the trend with personal computers, giving everyone access to a personal computer. I love fruit!

Who is Steve Jobs?

400

This invisible force keeps your feet on the ground and makes sure the apple fell on Newton’s head instead of floating away. 

What is gravity?
500

This type of whale is known for its complex songs, and can be heard underwater for miles. 

What is the humpback whale?

500

If you love rivers, follow this one as it twists and turns through 10 countries in Europe.

What is the Danube River?

500

If you visit this European city, you can stand in the same place where the Olympics were held three times, most recently in 2012.

What is London?

500

Before this invention, drinking milk was risky business. But thanks to a process that heats and cools liquids, our food became much safer to consume. 

What is Pasteurization?

500

Think of animals like owls and bats who love to stay up late, prowling in the dark and catching prey while the rest of the world sleeps and are known as this. 

What is nocturnal?

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