ClassX Video Lessons Youtube Channel Smile and Learn English EXCRETORY SYSTEM ????????♂️ Urinary System and Sweat Glands ???? Science for Kids
Hello friends! Today, we’re going to explore a fascinating part of our body called the excretory system. This system helps our body get rid of things it doesn’t need, just like how a car uses an exhaust pipe to release smoke. The excretory system includes the urinary system and sweat glands. Let’s dive in and learn more!
The urinary system is like a superhero team with the kidneys as the main heroes. These kidneys are dark red and shaped like beans. They work hard to clean our blood by filtering out waste. Imagine them as magical strainers that make the blood clean and fresh!
But what happens to all the waste the kidneys filter out? It turns into urine! Urine is mostly water—about 95% of it! The urine travels from the kidneys through tubes called ureters and ends up in a special place called the bladder. The bladder is like a balloon that stores urine until it’s time to let it out through a tube called the urethra. This process is called urination.
Now, let’s talk about another part of the excretory system: the sweat glands. These are found under our skin and help clean our blood by making sweat. Sweat is a liquid that comes out when we’re hot or exercising. It’s mostly water too—99% of it! The rest is made up of salts and other substances.
Sweating is not just about getting rid of waste; it also helps cool our body down. When we exercise a lot, we can sweat up to three or four liters in just one hour! That’s why it’s important to drink water when you’re playing or doing sports.
Today, we’ve learned that our body has two ways to get rid of waste: through urine with the urinary system and through sweat with the sweat glands. Isn’t it amazing how our body works? Keep exploring and learning more about the wonders of the human body. See you soon!
We’ve discovered so much in just one lesson! If you want to learn even more, check out the Smile and Learn educational channel for more fun and educational videos. Happy learning!
Kidney Bean Experiment: Let’s pretend to be kidneys! Take a strainer and some water mixed with small bits of paper or leaves. Pour the mixture through the strainer into a bowl. Watch how the strainer catches the bits, just like kidneys filter waste from the blood. Discuss with a friend or family member what happens to the “clean” water and the “waste” bits.
Sweat Detective: On a warm day or after playing, notice how your skin feels. Do you see or feel sweat? Use a magnifying glass to look closely at your skin. Can you see tiny droplets? Talk about how your body feels cooler after sweating. Why do you think drinking water is important after sweating?
Urinary System Role Play: Gather a few friends or family members and act out the journey of urine through the urinary system. One person can be the kidney, another the ureter, someone else the bladder, and another the urethra. Use a small ball to represent urine and pass it along the “system” while explaining each part’s role. How does each part help in getting rid of waste?
Sure! Here’s a sanitized version of the transcript:
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Hello friends! Today we’re going to learn about one of the systems of the human body: the excretory system. This system is made up of the urinary system and the sweat glands. But do you know the function of this system?
Just like cars get rid of what they don’t need through the exhaust pipe, the human body also has to eliminate certain substances. Excretion is the removal of toxic substances that are present in our body, which could be harmful if they remain.
What is responsible for collecting all of this waste that we don’t need? Blood! Will you join me to discover what components make up the urinary system and the sweat glands? Let’s go!
**Urinary System**
The main organs of the urinary system are the kidneys. They’re dark red and bean-shaped, and they’re responsible for filtering waste from the blood. They act like strainers. The blood arrives with toxins it has collected from all over the body, and when it leaves, it’s clean—it’s like magic!
And all that waste? Where do you think it goes? That’s right—to urine! Urine is made up of those waste substances that the kidneys have been eliminating from the blood. However, urine contains a very high water percentage—guess how much? 95 percent!
Urine travels from the kidneys through tubes called ureters until it reaches the bladder. But what is the bladder? The bladder is a balloon-shaped organ that stores urine. Once it’s full, urine is expelled outside the body through a tube called the urethra. Urination is what we call this liquid expulsion.
**Sweat Glands**
Now, let’s move on to another organ of the excretory system: the skin. Underneath it, we have sweat glands, which are also responsible for cleansing our body’s blood by expelling sweat.
But what exactly is sweat? Sweat is a liquid that our body generates when we’re hot or when we exercise. We expel sweat out through our pores located on our skin. Did you know that 99% of sweat is water? The other 1% is made up of salts and substances that our body expels.
Sweating is also a method of cooling our body, which helps regulate body temperature. In one hour of intense exercise, our body can produce between three and four liters of sweat—Incredible! Don’t forget to drink some water when you do sports!
Today we have learned that our body expels two types of toxic waste substances: urine thanks to the urinary system, and sweat through pores located on the skin. Interesting, isn’t it? See you soon!
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We’ve learned so much in just one video! Did you know there are many more videos? Imagine how much you could learn! Subscribe to the Smile and Learn educational channel to learn and have fun at the same time.
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