Hello everyone! Today, we’re going to explore some cool secrets about ice cream and learn what connects cold ice and hot steam. Have you ever wondered why sometimes rain falls from the clouds, other times it’s snow, and sometimes even hail? Let’s find out how all these things get into clouds!
Rain, snow, and hail are all different, but they all come from clouds. Isn’t that interesting? Well, guess what? They’re all made of water! The clouds themselves are made of water too.
Water can change into three different forms: a solid, a liquid, or a gas. Let’s see how this happens!
Let’s step into the kitchen and see how water changes. First, we add water to a pot and heat it on the stove. As the water heats up, it turns into steam. You might see steam on mirrors or glass when it collects.
Now, how does ice appear in the ice tray? That’s right! Water freezes in the cold freezer and turns into ice. When you freeze special milk, you get ice cream! Do you like ice cream? It’s perfect for summer!
When water is heated a lot, it boils and turns into steam, which is very light and rises up. This is how water changes from a liquid to a gas.
When the sun warms the sea or ocean, the water turns into vapor and rises to form clouds. High in the sky, it’s much colder, so the vapor cools and turns back into liquid, falling as rain. In winter, it might snow instead!
During a thunderstorm, raindrops can freeze and fall as hail. This is all part of the amazing water cycle that keeps going on and on.
Let’s talk about changes. If you crack an egg into a hot pan, it turns white and hard. But unlike water, the egg won’t turn back into liquid. This is an irreversible change.
What about paper? If you burn it, it turns to ash and can’t become paper again. That’s another irreversible change.
Think about the changes you’ve seen. Which ones can be reversed, and which can’t? Share your thoughts!
Thanks for learning with us today! We hope you enjoyed discovering the secrets of water and ice cream. See you next time!
Water Transformation Experiment: With the help of an adult, try this fun experiment at home. Take three small cups and fill one with water, one with ice cubes, and leave the third empty. Place the empty cup in the freezer and wait for about an hour. Observe what happens to the water and the ice cubes. Discuss with your family what you see and how water changes from one form to another. Can you guess what will happen if you leave the ice cubes out in the sun?
Weather Watch: Over the next week, keep a weather diary. Each day, note down whether it is sunny, rainy, snowy, or if there is hail. Draw pictures of the clouds you see and try to guess what kind of precipitation might fall from them. Discuss with your classmates or family how the weather changes and what form of water you see most often.
Reversible vs. Irreversible Changes Game: Gather a few items from around your home, like a piece of paper, a small piece of chocolate, and a rubber band. With an adult’s help, try changing each item in some way (e.g., crumple the paper, melt the chocolate, stretch the rubber band). Decide together which changes can be reversed and which cannot. Talk about why some changes are permanent and others are not.
Sure! Here’s a sanitized version of the transcript:
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Hello everyone! Today we’re going to learn the secret of ice cream. We’re also going to find out what cold ice and hot steam have in common. I wonder why sometimes it’s rain that falls from clouds, sometimes it’s snow, and sometimes even hail. How does all that get into clouds?
What do you mean by “all that”? Rain, snow, hail—all sorts of things fall from clouds during bad weather. Well, in fact, that’s all just water taking on different forms. The clouds themselves are water too.
That’s strange! All those things are very different. Rain is wet, snowflakes are light and soft, and hail is hard and heavy. Are they all really made out of water?
Yes, that’s how it is! Like many other materials, water can take on three distinct forms: a solid, a liquid, or a gas.
How is that possible?
You see it every day; you’ve probably just never noticed it before. Let’s step into the kitchen and take a look. Solids, liquids, and gases can be found all over the place, especially in the kitchen.
First, I’m going to add some water to this pot. Now I’m going to add a little heat energy by turning on the stove. We’re going to wait a little while for that water to heat up. When the water heats up, it starts to make steam. Sometimes you can see that steam collect on things like mirrors and glass.
We’re going to use a pop top to try and catch some of that steam right now. So, how did we get steam from just water in the pot?
That’s a mystery!
I have another mystery for you: how does this ice appear in the ice tray?
I know the answer to this riddle! The water’s got frozen because it’s very cold in the freezer.
That’s right! How did you guess?
I’ve seen puddles freeze over when it gets cold. Good job! Cooling other liquids down can turn them into solids as well, like soda or juice. If we freeze a special type of milk, we’ll get ice cream. Do you like ice cream?
Of course! Especially in summer.
I love it! Now I understand what cooling does to liquids, but what about steam? How is it made?
When a lot of heat energy is applied to water, it boils and turns into steam. Steam is very light; that’s why it goes up. That means water changes its state from liquid to gas when heated.
When a water body like a sea or an ocean is warmed by the sun, the water from its surface turns into light vapor. That vapor goes high up in the sky and forms clouds. High above the Earth, it’s much colder. Cooling turns water vapor back into liquid water that falls down as rain. And if it’s winter outside, then it snows.
When it’s too cold, water vapor quickly turns into small crystals that stick together and form snowflakes.
And what about hail? Sometimes during a thunderstorm, when it’s very windy, raindrops in the clouds freeze and fall down as hail.
This is just one of the amazing changes that water can go through when it’s heated or cooled. It’s called the water cycle, and it continues over and over again.
Hey, I’ve got one more example! If we crack an egg into a heated pan, it becomes white and hard. Its state of matter changes because of heating, right?
That’s a great question! When we talk about changing states of matter, the material itself stays the same, so it can be changed over and over again from a solid to a liquid to a gas. Do you think that’s the case with our egg?
Hmm, I don’t think so. Even if we heat it more or put it in a cold fridge, it won’t become liquid again. Does that mean this change is irreversible?
That’s right!
Let’s take a look at some other irreversible changes. What if I bring this paper close to a fire? What’s going to happen to it?
It’ll burn down and turn into ash.
There’s no chance we’re able to turn that ash back into a piece of paper. It’s one more example of an irreversible change.
Guys, tell us what changes of matter you’ve noticed. Which of those changes were reversible and which irreversible? Share your observations and comments under this video.
We look forward to hearing from you, and we’ll see you next time!
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