Human Body - Class 1 Notes & Olympiad Questions

Human Body - Class 1 Science

  • Human Body
  • Sense Organs
  • External Organs
  • Internal Organs
  • Solved Questions on Human Body
  • Human body Parts and Their Function

    The human body is a fascinating thing! It's like a big machine made up of many different parts that all work together to help us move, think, see, and stay alive. These parts are broadly categorized as the sense organs, external organs and internal organs.

    Classification of Human Body - Science Grade 5

    Sense Organs of Human Body

    Our sense organs are like special tools that help us experience the world around us. We have five main sense organs, and each one helps us understand different things. These are:

    Eyes: Our eyes help us see. We can see all the beautiful things around us because of our eyes!

    Eyes of Human - Science Grade 5

    Ears: Our ears help us hear. With our ears, we can enjoy all kinds of sounds, like birds chirping or our favourite songs.

    Ears of Human - Science Grade 5

    Nose: Our nose helps us smell. When we breathe in through our nose, we can smell different things around us, like flowers, food, and other unpleasant smells also.

    Nose of Human - Science Grade 5

    Tongue: Our tongue helps us taste. When we eat, our tongue helps us figure out if something is sweet, salty, sour, or bitter. That's why we can tell if an apple is sweet or if a lemon is sour.

    Tongue of Human - Science Grade 5

    Skin: Our skin helps us touch and feel things. Our skin can feel things that are soft, rough, hot, or cold. Our skin helps us experience the world through touch. All these sense organs work together to help us understand and enjoy the world around us.

    External Organs of Human Body

    The external organs of our body are the parts that we can see and touch on the outside. They help us do different things and protect our bodies. Some important external organs are:

    Head: Our head is where our brain is. Also, this is where our sense organs like eyes, nose, ears and tongue are present.

    Head of Human - Science Grade 5

    Neck: The neck is the part that connects our head to the rest of our body. Our neck is flexible, which means it can move our head in different directions. We can turn our head to look left and right, up and down, or tilt it to the side.

    Neck of Human - Science Grade 5

    Back: Our back is like a strong pillar that holds our body upright. It helps us stand tall and sit straight.

    Back of Human Body - Science Grade 5

    Arms and Hands: We use our arms and hands to pick things up, hold things, and do many activities. Our hands have fingers, which we use for grasping and feeling things. We can write, draw, and play games with our hands.

    Arms and Hands of Human Body - Science Grade 5

    Legs and Feet: Our legs and feet help us walk, run, jump, and balance. Our legs have big muscles called thighs, and our feet have toes that help us stand and move around.

    Legs and Feet of Human - Science Grade 5

    Skin: Our skin covers our whole body like a protective layer. It's the largest organ we have. Our skin helps keep our bodies safe and warm. It is also a sense organ and helps us feel things like touch, heat, and cold.

    Human Skin - Science Grade 5

    Hair: Our hair grows on our heads and all over our bodies. Hair helps to protect our skin and keep our heads warm. It also comes in different colours, textures, and styles, making everyone look unique.

    Hairs of Human - Science Grade 5

    All of these external organs are very important, and we should take good care of them.

    Internal Organs of Human Body

    Internal organs are parts of our body that are inside us and we can't see them from the outside. They do important jobs to help keep us healthy and alive. Some of the main internal organs are:

    Brain: The brain is like a supercomputer that controls everything we do. It's located inside our heads. The brain helps us think, learn, remember, and feel emotions. It also controls our movements and helps us see, hear, smell, and taste things.

    Brain structure of Human - Science Grade 5

    Heart: The heart is like a pump that keeps our blood flowing. It's located in the middle of our chest. The heart pumps blood to all parts of our body and delivers oxygen and nutrients that our body needs to function properly.

    Human Heart - Science Grade 5

    Lungs: The lungs are like big balloons in our chest. We breathe air in and out through our lungs. The lungs help us breathe and get oxygen into our bodies. When we inhale, our lungs take in fresh air, and when we exhale, they release carbon dioxide, which is a waste product.

    Lungs of Human - Science Grade 5

    Stomach: The stomach is like a bag inside our belly. When we eat, the food goes into our stomachs. The stomach breaks down the food into smaller pieces and mixes it with special juices to help with digestion.

    Human Stomach - Science Grade 5

    Liver: The liver is a big organ located in our upper belly. It helps filter our blood and remove harmful substances. It also produces important chemicals that our body needs for digestion.

    Human Liver - Science Grade 5

    Intestines: We have two types of intestines - the small intestine and the large intestine.
    The small intestine is like a long tube, and it absorbs all the nutrients from the food we eat. The large intestine is wider and helps get rid of the waste that our body doesn't need.

    Human Intestines - Science Grade 5

    Kidneys: We have two kidneys, one on each side of our body. They are like filters that clean our blood by removing waste and extra water.

    Human Kidneys - Science Grade 5

     Suggested - Explore more about Living and Non-Living Things

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