Our bodies have tiny superheroes inside called white blood cells! π¦ΈββοΈ They work hard to find and fight the bad viruses that make us sick. Sometimes, when we get a fever or a runny nose, it means our superheroes are doing their job! πͺ
Our skin and nose hairs also help keep viruses out, like a strong castle wall! π°
When you run, your body works hard like a little engine! π Your muscles move fast, and your heart beats quickly to give them energy. After running, your body needs to rest because it used up a lot of energy, just like when your toy car stops after playing too much!
Drinking water and resting helps your body feel better. π§π
Our bodies are like tiny factories π that are always working! When you grow or get a boo-boo, your body makes new cells to fix it. Cells are like tiny building blocks 𧱠that make up everything in your body.
Inside your body, there are special cells that can split into two new cells. It's like magic! β¨ One cell becomes two, and that's how you grow bigger and stronger every day!
Submarines are like big underwater boats! οΏ½ They can go up and down in the water like a fish. π
They have special tanks called ballast tanks. When they fill with water, the submarine goes down. When they push the water out, the submarine goes up! π
They also have propellers to move forward, just like a fan pushes air. π¨
Nuclear energy is a special kind of power that comes from tiny things called atoms! π Atoms are like super tiny building blocks that make up everything around us.
When we split atoms in a special way, they release a lot of energyβlike a tiny, invisible firework! π This energy can make electricity to light up our homes and schools.
Wind turbines are like big fans, but instead of blowing air, they use the wind to make electricity! π¬οΈπ‘
When the wind blows, it spins the big blades of the turbine. The spinning blades turn a machine inside called a generator, which makes electricity. Just like when you pedal your bike fast, the wheels spin and make you go zoom! π΄
This electricity goes through wires to our homes so we can turn on lights, watch TV, and play with toys! π β¨
Some materials burn because they can catch fire when they get hot! π₯ When things like wood or paper get very warm, they turn into flames and smoke. This is called burning.
Fire needs three things to happen: something to burn (like wood), air (to help the fire grow), and heat (like from a match). If one of these is missing, the fire stops!
Solar panels are like magic windows that catch sunlight and turn it into electricity! π They are made of special materials that get excited when the sun shines on them. This excitement makes tiny bits of electricity flow, which we can use to power things like lights and toys!
Imagine the sun is giving the solar panel a big hug, and the panel says, "Thank you!" by making electricity. Cool, right?
A chemical reaction is like magic! β¨ It's when things mix together and change into something new. Like when you mix baking soda and vinegar, it fizzes and bubblesβthat's a chemical reaction! π§ͺ
Think of it like making cookies. You mix flour, sugar, and eggs, and after baking, you get yummy cookies! πͺ That's a kind of chemical reaction too!
Elevators are like magic boxes that take you up and down in buildings! π’β¨ They have a special room (called a car) that moves with the help of strong ropes and a big motor. When you press a button, the motor pulls the ropes to make the elevator go up or down.
There are also doors that open and close automatically to keep everyone safe. πͺπ‘