ClassX Video Lessons Youtube Channel Smile and Learn English Echinoderms and sponges for kids – Invertebrate animals – Natural Science for kids
Hello everyone! Today, we’re going to learn about some amazing sea creatures. Imagine stepping on a sea urchin—ouch! Luckily, they’re usually small. Let’s dive into the ocean and discover more about these fascinating animals.
Echinoderms are a special group of animals that live only in the ocean. They move slowly across the seabed using tiny tube feet. Have you ever seen a starfish? Starfish are echinoderms, and they have these tiny tube feet and a mouth on the bottom of their bodies. Isn’t that cool?
Sea urchins are also echinoderms. They have bodies covered with sharp, movable spines. Be careful around them, or you might get a little sting! Other echinoderms include sea cucumbers and sea lilies. Here’s something really neat: if a starfish loses one of its arms, it can grow a new one!
Now, let’s talk about another group of sea creatures called sponges. Sponges have bodies full of tiny holes, or pores. Some sponges are soft and smooth, while others can be hard and rough. They live in the sea and attach themselves to rocks and reefs.
Sponges can’t swim, which is why people once thought they were plants. But unlike plants, sponges can’t make their own food. Instead, they use their pores to filter tiny bits of food from the water, like plankton and bacteria.
Did you know that people have used sea sponges for washing and bathing for hundreds of years? They’re like nature’s own cleaning tools!
That’s all for today about echinoderms and sponges! If you want to keep learning, you can try out the Smile and Learn platform. It’s full of fun games, videos, and stories that you can explore on your mobile, tablet, or PC. Have fun discovering more about the amazing world of nature!
Starfish Arm Regrowth Experiment: Create a simple craft to understand how starfish can regrow their arms. Use modeling clay or playdough to shape a starfish. Then, gently remove one of its arms. Over the next few days, add a little bit of clay each day to simulate the arm growing back. Discuss with your friends or family why this ability might be helpful for starfish in the wild.
Sponge Water Filter Activity: Gather a few different types of sponges and a bowl of water mixed with small bits of paper or glitter. Let the children dip the sponges into the water and observe how the sponges filter out the particles. Ask them to think about how sponges in the ocean might filter food from the water. What do they notice about the different types of sponges and their ability to filter?
Observation Walk: Take a walk in a nearby park or garden and look for things that remind you of echinoderms and sponges. Can you find anything with a star shape like a starfish or something with tiny holes like a sponge? Draw or take pictures of what you find and share them with your class. Discuss how these natural items are similar to or different from the sea creatures you learned about.
Sure! Here’s a sanitized version of the transcript:
—
[Music]
Hello everyone! Today I’m here to tell you about something interesting. I think I’ve stepped on a sea urchin—lucky it was a small one!
Well, back to what I was going to explain. The first group I’m going to tell you about is called echinoderms. Do you know what kind of animals they are? I’ll explain it to you. Echinoderms are exclusively marine animals. They move about very slowly on the seabed thanks to their tiny tube feet.
This starfish, for example, has tiny tube feet and a mouth on the lower surface of its body. The body of the sea urchin is covered with movable spines. Whoa! Did you see that? Look at those spines! Watch out for them, or you’ll get stung!
Sea cucumbers and sea lilies are also in the echinoderm group. These animals are so much fun! Do you want to hear something really interesting about them? Did you know that when a starfish loses one of its legs, a new one will grow in its place?
There’s another group of invertebrates I want to tell you about today—sponges. Sponges have bodies full of pores. Many sponges are soft and smooth, but others can be hard and rough. They only live in the sea and oceans, and they attach themselves to rocks and reefs.
Sponges can’t actually swim, which is why for many years we thought they were plants instead of animals. Do you know why? Sponges can’t make their own food like plants do. They use their pores to feed on plankton and tiny particles of bacteria in the water.
Did you know that sea sponges have been used for centuries for washing and bathing?
That’s all about echinoderms and sponges! I’m going back to my swim. See you around!
Do you want to keep on learning? Try our Smile and Learn platform for free for a month and enjoy all of our games, videos, and interactive stories. Go for it! Download Smile and Learn on your mobile, tablet, or PC!
—
Let me know if you need any further modifications!
