The gallon (gal) is a unit of measuring for measuring liquid capacity. The gallon (gal) is a unit of measuring for measuring liquid capacity. It

Science can explain wrinkles, and it’s less complicated than you may think. The short answer is that clothes get wrinkled because of heat and water.

1. Did you know it’s illegal to feed pigeons on the sidewalks and streets in San Francisco A sprinkle of breadcrumbs to feed hungry birds may

Thinking about your muscles can make you stronger. After eating too much, your hearing is less sharp. A rat can go without water longer than

What’s the World’s Most Populous City? According to the UN’s World Cities Report for 2018, Tokyo is the largest city on Earth, with a population of

Jamestown may have earned the distinction of being the first permanent English colony in North America when it was settled in 1607, but it’s not the

You climb into your car, adjust your AC, drop your wallet into that aggravating space between the seat and the center console, curse, retrieve your wallet,

It’s a scientific explanation of the history of our universe. Based on the name, you might expect that it starts with an explosion. However, that’s not the case.

Have you ever eaten a spicy meal? If so, you know it has a few different effects on your body. Your mouth will burn. Your salivary glands

Maybe you’ve heard people call themselves “right-brained” or “left-brained.” Did you WONDER how they could only use one half of their brain? They’re actually referring to an

The earliest known users of makeup were the ancient Egyptians. They used many plants and minerals as makeup. Some of the most common ingredients were almonds, copper, lead, and ash. They also

You might be Wondering just what the difference between poison and venom is, anyway. You might hear people use the two words interchangeably. However, that’s

It turns out, there are plenty of small countries out there. There’s Nauru, the world’s smallest island country. It covers an area of about 13 square miles.

Have you ever noticed the ® and ™ next to some logos? We bet you have. Companies use these symbols to tell you these items are trademarks.

Would you believe that dry cleaning isn’t actually dry? It’s not! Rather, it’s a method of cleaning that doesn’t use water. That’s because some fabrics,

It’s true! Generally, humans can see light with wavelengths between 380 and 700 nanometers (nm). All the colors of the rainbow—from red all the way down to

Many people think lichens look like plants. However, scientists say they’re part of the fungus kingdom. That’s because lichens are composite organisms that always include at least one fungus and

Look around you. Do you see anything that’s alive? You’re alive, of course, as are any friends of family members you can see. Do you

The first electric refrigerator was made in 1913. Before then, people found other ways to store their food. In cold areas, ancient people could freeze

Many people have had this experience. Most often, it results from spending a lot of time with another person. After hours of talking, playing, or

An enigma is a mystery. People use the word in a few different ways. Sometimes, it describes something that’s just difficult to understand. Think about

It’s on the Palau archipelago, about 400 miles (650 kilometers) north of New Guinea. This string of over 300 islands is home to beautiful beaches and

It helps prevent ice from forming on the pavement, making it much safer to drive during winter weather. The salt spread on roads and sidewalks is essentially

Plastics with other numbers cannot be recycled. Why not? In most cases, items can’t be used again if they contain more than one type of

How could they make you eat broccoli? Or cauliflower? Or lima beans? Or…you fill in the blank. Yes, we all have foods that aren’t our favorites.

tears can be both emotional and physical in origin. Sometimes it’s our feelings that lead to waterworks, while other times it’s something purely physical that causes our eyes to water. You can think

How do you keep track of memories? Good times with friends and families are things we’ll want to remember forever. Unfortunately, our human brains tend

Ocean water is salty because it contains large amounts of dissolved minerals. These minerals are often called “salts.” Depending on which part of the world you are splashing

Some of our gemologist Wonder friends probably know the different ways to tell the difference between real gold and fool’s gold, but do you know how to tell

Do you think people all around the world have the same favorite foods? Maybe not! When you think of Mexican cuisine, you probably think about

Humans have known for a long time that people from different parts of the world often have different skin colors. For example, people who lived

For many years, people believed (and some still do!) that the ocean is blue because it reflects the blue sky. The real reason the ocean appears blue does involve reflection,

Sometime around 1674 the British flag became formally known as the ‘Union Jack’ when mounted on a warship and the ship was not in harbour.

Many religions around the world have specific beliefs about how Earth began. Some believe a divine creator brought Earth and all of the things in

Getting sleepy and eventually falling asleep after reading a few pages is a phenomenon that many, if not most, of us, can relate to. So

Have you ever noticed something interesting about cameras, though? What shape is the camera lens? What shape are the pictures they produce? That’s right! Round lenses produce rectangular pictures! What’s up

Smoke detectors in homes are Wonderful, life-saving devices. When technological advancements made it possible for nearly everyone to afford smoke detectors for their homes in the late 1970s, annual fatalities

Have you ever noticed how things change colors? Chameleons…leaves in the fall…even though mood rings! What makes these things change colors? Is it the same

With a vivid taste and smell, vinegar is a versatile liquid with many uses and benefits. Created from the fermentation of alcohol, the main ingredient in vinegar is acetic acid. The acetic acid in vinegar gives it its unique

Black Friday has become a marketing sensation in recent years. Since 2005, it has been the busiest shopping day of the year. To lure shoppers, retailers routinely open their doors

Left-handedness — sometimes called “sinistrality” — means you prefer to use your left hand rather than your right hand for routine activities, such as writing. Most people

Most people are familiar with liquid ink that can be found in pens. If you have experience with computer printers, you also know about liquid ink that

Is it magic? Nope! It’s science — and it’s all about water. The regular white glue most students know so well is made up of a variety