From Canned Food to Marble Caves: Amazing Things to Know

• Did you know about animal imprinting?
Imprinting is something that happens with many animals right after they’re born. Usually, they follow their mother. But if they see someone or something else first, even a human or object they may follow that instead, even as they grow up. This process is called “imprinting” and sometimes it even helps save animals whose mothers didn’t survive.

• Curious about rainforest weather?
Rainforests are full of moisture. Because of this, they are often cloudy and rainy, which is why they’re called rainforests. Their weather is usually very different from the nearby areas.

• When was toilet paper invented?
Before toilet paper, people used all kinds of things like leaves or wool. In 1857, toilet paper was created for medical use. It only became common in homes about 50 years later, once sewer systems improved.

• What do antibiotics really do?
Antibiotics don’t actually kill bacteria like many think. Instead, they stop bacteria from growing and spreading. That’s why it’s so important to take the full amount your doctor gives and stopping early can make bacteria stronger and harder to fight.

• How do cans preserve food?
Canned food stays fresh because the air is removed from the can before sealing it. Without air, bacteria can’t survive, so the food stays good for a long time.

• What’s the world’s longest river?
The Amazon River in South America is the longest river in the world, about 7,040 kilometers! It runs through nine countries and pours over 100,000 cubic meters of water into the ocean every second. It’s surrounded by the Amazon Rainforest, the biggest forest on Earth, which covers over 6 million square kilometers.

• Have you seen Chile’s marble caves?
These stunning caves were carved by the waters of Lake Carrera and are made of smooth limestone. They’re found on the border of Chile and Argentina and are known for their beautiful colors and shapes.