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.
Fireworks are like big, colorful lights in the sky! π People use them to celebrate special days because they look so pretty and make everyone happy. It's like the sky is throwing a party! π
Long ago, people thought loud noises and bright lights scared away bad things. Now, we just love how they sparkle and boom!
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¨
Long ago, people didn't have clocks like we do today! β° They used the sun, moon, and stars to tell time. ππβ¨
When the sun was high in the sky, it was daytime. When it was dark, it was night! People also used shadows from the sun to guess the time.
Fun fact: Some ancient people used big rocks called "Stonehenge" to track the sunβs movement! πͺ¨
Dolphins are super smart and chatty! π¬ They talk to each other using sounds like clicks, whistles, and squeaks. It's like they have their own secret language under the sea! π
They also use body language, like jumping and splashing, to say "hello" or "let's play!"
A long time ago, a clever man named Johannes Gutenberg invented the printing press! π It was like a magic machine that could make lots of books very quickly. Before that, people had to write books by hand, which took a very long time. Thanks to Gutenberg, books became easier to make, and more people could read them! π
His invention helped share stories and knowledge all around the world. π
Long ago, before cars were invented, people used animals like horses π΄ and donkeys to travel. They also walked a lot! πΆββοΈ Sometimes, they rode in big carts pulled by animals. Boats π€ were used to travel on water.
Parents could show pictures of horses and carts to make it fun!
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¨
GPS is like a magic map in the sky! πβ¨ Tiny satellites (like stars) fly around the Earth and send signals to your phone or car. When your device gets signals from at least 3 satellites, it can tell exactly where you are! ππ±
It helps parents find the way to the zoo or the ice cream shop! π¦π¦
Virtual reality (VR) is like a magical world you can see and explore using special glasses! πΆοΈβ¨ When you put on VR glasses, it feels like you're inside a game or a movie. You can look around and see amazing things all around you, even though you're still in your room!
It's like pretending to be in a different place, but it looks so real! οΏ½