7 Surprising Things You Probably Didn’t Know

• Did you know what our vocal cords really do?
Our vocal cords are made of cartilage and are located at the top of the throat. When we breathe out, air passes over them, making them vibrate and create sound. But they don’t just help us talk, they also help control the air going to our lungs and keep out anything that shouldn't be there.

• Did you know how long the world’s longest pizza is?
People around the world keep trying to break this fun record. While you'd expect it to be in Italy, the biggest pizza ever was made in California! It stretched 1,930 meters long. A hundred chefs worked for 54 hours to create it. Hopefully, it was delicious too.

• Did you know there’s a plane that takes off straight up?
The Harrier jet, made in Britain in the 1960s, can take off almost like a helicopter. Its special system pushes the exhaust straight down, letting it lift off vertically. It can even hover in place or fly backward.

• Did you know water isn’t always the best way to put out a fire?
If oil catches fire, don’t pour water on it. Since oil floats, the fire can spread quickly. Instead, cover the fire with a blanket or throw sand on it to smother the flames.

• Did you know the wild dingo looks like a pet?
The Australian dingo looks like a regular dog, but it’s actually a wild hunter. Dingoes live in packs and don’t bark, they howl like wolves. They eat animals like snakes, lizards, sheep, and even kangaroos.

• Did you know there’s a capsule that can replace surgery?
An Israeli engineer, Dr. Gabi Idan, created a tiny camera capsule you can swallow like a pill. It takes pictures inside your intestines and sends them to doctors, sometimes avoiding the need for surgery just to see what’s going on.

• Did you know there’s hot water that shoots from the ground?
A geyser is a special natural spring that shoots out hot water and steam. It happens every so often when underground water gets superheated. Yellowstone Park in the U.S. has around 400 geysers across nine areas.