True! From a plant scientist's view, a tomato is a fruit because it grows from the plant's flower and has seeds inside. But in the kitchen, we often use it like a vegetable. So it's kind of both!
A chameleon only changes color to hide in its surroundings.
False! Blending in with their surroundings is just one reason. Chameleons also change color to show how they're feeling, to talk to other chameleons, and to control their body temperature!
False! All parts of the Moon get sunlight. The side we don't see from Earth is called the 'far side,' but it gets lit up by the sun just like the front, just at different times during the month.
Your heart is about the same size as your clenched fist.
That's true! For most people, their heart is about the size of a closed fist. It's an amazing muscle that pumps blood all over your body, all day and night, without ever resting!
Polar bears can get too hot and overheat if they run too much.
Yes, that's right! Polar bears have such thick fur and a thick layer of fat that they are incredibly good at staying warm in cold environments. But this also means they can easily get too hot if they exert themselves too much.
Astronauts can get a little taller when they are in space.
Yes, it's true! Without Earth's gravity, your spine stretches out a bit, so astronauts can become up to a few centimeters taller. But when they come back to Earth, they return to their normal height!
Fish sleep with their eyes open and can even sleepwalk!
Fish don't sleep exactly like humans do, but they do rest! They can't sleepwalk because they don't have legs to walk on, and they don't close their eyes because they don't have eyelids.
A chameleon can move its eyes in different directions at the same time.
That's true! A chameleon's eyes can move completely independently of each other. So, it can look forward with one eye and backward with the other at the same time to watch out for food and dangers.
Even though many sharks have sharp teeth, there are exceptions! For example, the whale shark, which is the world's largest fish, filters its food and only has tiny teeth.
From the ground, we usually only see a half-circle. But if you were high up in an airplane with the sun behind you, you could see that a rainbow actually forms a beautiful full circle!
No, whales look like fish, but they are actually mammals. This means they breathe air with lungs, give birth to live babies, and feed them milk, just like humans!
A day on the planet Venus is longer than a year on Venus.
That's true! Venus spins so incredibly slowly around its own middle that one single day there takes longer than it takes for Venus to go all the way around the Sun!
No, that's not right! Sound waves need something to travel through, like air or water. Since space is almost a perfect vacuum, there's nothing for sound to travel through. That's why space is completely silent. Imagine how quiet it would be outside your spaceship!
No, that's not right! Clouds can be white, grey, or even dark grey, almost black. When clouds get thicker, they hold more water, which means less light can pass through them, making them look darker. Dark clouds often mean rain is coming!
Babies have more bones in their bodies than adults.
Yes, that's right! When babies are born, they have about 300 bones. As you grow into an adult, some of these bones grow together, so an adult has 'only' 206 bones. Your skeleton develops and fuses bones as you grow.
Yes, that's right! Snails have something called a radula, or a 'rasping tongue,' which is covered in thousands of tiny, sharp teeth. They use it to scrape food from plants and other surfaces. Imagine a mouth full of tiny graters!