Stem cells are the body’s master cells. They are sometimes called “magic seeds.” This is because they are the basic building blocks of all tissues, organs and systems in the human body. Stem cells are special cells. They can turn into many different ce
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Cats’ eyes glow in the dark. Also, many other animals that hunt at night have eyes that glow at night. So, why do their eyes appear to glow when a light shines on them? The glow that you see is light reflected from a mirror-like structure in their eyes.
If you look up in the sky, you can see beautiful clouds. Clouds form when water vapor condenses onto tiny dust particles floating in the air. The cloud formation happens when warm and cold air meet? when warm air rises up the side of a mountain and
Red dwarf stars are small stars. Some of them are a hundred times smaller than the sun. Because of their small size, these stars burn their fuel very slowly. So, they can live a very long time. Surprisingly, some red dwarf stars can live trillions of year
The Solar System is made up of all the planets that orbit the Sun. The Solar System also consists of moons, comets, asteroids, dust and gas. Everything in the Solar System orbits around the Sun.
We are living on Earth. But how much do you know about it? This week, let's learn more about our planet. The Earth is the third planet in order from the Sun. It is about 150 million kilometers from the
What's your blood type? A, B, O, or AB? Do you know what the world's most common type of blood is? Did you say "B" Wrong! The answer is O! The O blood type is very common around the world. About 63% of people all around the globe share the blood type!
The Sun is the largest object in the solar system. So, how big is it? The sun is nearly 333,000 times more massive than the Earth. It also makes up 99.86 percent of the solar system's mass. If the Sun were hollow, over 1.3 million Earths could fit inside
We have many bones inside our bodies. The human skeleton consists of 206 bones. In fact, we are born with more bones (about 300). But as a child grows up, bones join together to make longer bones.
Saturn is a very interesting planet. It got its name from the Roman God of Agriculture, Saturn. It is the sixth planet from the Sun, between Jupiter and Uranus. Saturn is the second biggest planet in the solar system. (Jupiter is the biggest.) Its diamete
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