Where’s a shrimp’s heart located? How long was the longest bridal veil? What’s a nurdle? Finding the answers to these questions and more will leave your classroom shook. We’ve put together this list of weird fun facts to surprise and amaze everyone in your classroom.

Favorite Weird Fun Facts

1. Australia is wider than the moon

The moon sits at 3,400 kilometers (2,113 miles) in diameter, while Australia’s diameter from east to west is almost 4,000 km (2,485 miles).

Source: Observing the Earth at The European Space Agency

2. Headphones can increase the bacteria in your ears

Wearing headphones for just an hour could increase the bacteria in your ears by 700 times. (Ew!)

Source: Your Ear Gear and Hearing Health at ENT Health

3. Scotland chose the unicorn as its national animal

In Celtic mythology, the fictional creature is connected with both chivalry and dominance as well as purity and innocence.

Source: Scotland and the Unicorn at VisitScotland

4. Human teeth are the only part of the body that can’t heal themselves

Teeth are not made of live tissue and are coated in enamel, which can’t spontaneously regenerate.

Source: Can Tooth Enamel Grow Back? at WebMD

5. Supermarket apples can be a year old

Are those apples you just bought actually a year old? Maybe! Farmers often pick apples in the fall, cover them in wax, hot-air dry them, and then put them in cold storage. This keeps them edible and ready to sell for 6 to 12 months!

Source: This Is the Gross Truth About the Apples You’re Buying at the Supermarket at Reader’s Digest

6. The Spanish national anthem has no words

The “Marcha Real” is one of only four national anthems in the world (along with those of Bosnia, Herzegovina, Kosovo, and San Marino) to have no official lyrics.

Source: What is Spain’s national anthem and why doesn’t it have lyrics? at BBC Music Magazine

7. Jennifer Lopez inspired the creation of Google images

After she wore her infamous green dress at the 2000 Grammys, the search engine added the function because so many people were looking for pictures of her outfit!

Source: Google Images Was Created Because of Jennifer Lopez at IFLScience

8. British military tanks are equipped to make tea

If the crew needs hot tea or coffee, they can just reach for the boiling vessel inside the tank.

Source: Challenger 2’s secret weapon: A cup of tea at Forces

9. The real name for a hashtag is octothorpe

While we know that “octo” refers to the symbol’s eight points, even Merriam-Webster is unsure about the “thorpe” part.

Source: Number Sign at Britannica

10. The longest walking distance in the world is 14,000 miles

You could walk from Magadan in Russia to Cape Town in South Africa without needing a vehicle.

Source: This Is the Longest Walkable Distance on Earth at Popular Mechanics