Scientists use big, special telescopes to look at stars! ๐ Telescopes help them see stars that are very, very far away. Some telescopes are on the ground, and some are in space, like the Hubble Space Telescope. They take pictures of stars and study their colors and brightness.
Stars are like big balls of fire, but they are so far that they look like tiny dots in the sky. Scientists also use computers to learn more about stars!
A supernova is a big, bright explosion in space! ๐ It happens when a very old star gets too heavy and can't hold itself together anymore. ThenโBOOM! ๐ฅโit explodes and shines super bright for a little while.
Imagine if a star was like a balloon filled with too much air... POP! That's kind of like a supernova!
The Moon is far away because it likes to play hide and seek with us! ๐โจ It moves around the Earth in a big circle, and sometimes it looks closer, sometimes farther.
Imagine the Moon is like a big balloon tied to a stringโit can't come too close, or it might pop! ๐
Spacesuits are like special superhero costumes for astronauts! ๐ฆธโโ๏ธ They keep them safe in space where there's no air to breathe and it's very cold or hot.
Here's what they do:
The suit is like a bubble around the astronaut with a helmet so they can see where they're going!
The International Space Station (ISS) is a big, shiny house in space! ๐ It flies around Earth really fastโlike a super-fast airplane! ๐ฉ๏ธ Astronauts from different countries live there and do fun science experiments. They float because there's no gravity in space! ๐ช
It's like a giant toy box where scientists learn new things about space and Earth. ๐โจ
Some planets have moons because they are like big space magnets! ๐ When a planet is very big and strong, it can pull smaller rocks or balls of ice to stay close to it. These rocks or ice balls become moons! ๐
For example, Earth has one moon, but Jupiter has 79 moons because it's much bigger!
๐ We have two eyes because it helps us see better! ๐ฏ With two eyes, we can tell how far away things are, like when you reach for a toy. ๐ It also makes our world look more colorful and fun!
Try closing one eye and then the other. Do things look a little different? That's because each eye sees things from a slightly different angle!
Our ears are like little magic tunnels that catch sounds! ๐ถ When something makes a noise, like a dog barking or a bell ringing, tiny waves travel through the air and go into our ears.
Inside our ears, there is a special part called the eardrum. It wiggles like a drum when the sound waves hit it! Then, the wiggles turn into messages that go to our brain, and our brain says, "I hear that sound!" ๐ง โจ
Our bodies are like superheroes ๐ฆธโโ๏ธ! When germs try to make us sick, our body has tiny soldiers called white blood cells that fight them. They gobble up the bad germs like Pac-Man! ๐ฎ
Sometimes, we get a fever ๐ค or a runny nose ๐คงโthatโs our body working hard to kick out the germs!
Our blood is like a special juice inside us! ๐ง Some people have red juice with tiny parts called A, some have B, some have both (AB), and some have none (O). These parts help our bodies stay healthy! ๐
Doctors check our blood type so they can give us the right kind if we ever need more. Itโs like matching puzzle pieces! ๐งฉ