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Human Body

The Human Body

The human body requires food, air and water. ... The ears and nose of humans continue to grow throughout the entire life. A human heart beats about 100000 times in a day, 36500000 times in a year and over a billion times in 30 years.

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The Blood and Circulatory System

A typical person has around 4-5 litres of blood.

Why do we have blood?
Our blood carries oxygen and nutrients around our bodies to the body's cells, and pick up waste materials to take out of the body.

What else does blood contain?
Our blood contains antibodies to fight invading germs.

How does blood move around the body?
Our heart is the pump that keeps the blood moving.


The blood is the transport system by which oxygen and nutrients reach the body's cells, and waste materials are carried away. HEART & BLOOD


The Digestive System

Food provides us with fuel to stay a live. From food we get the energy to work and play and the raw materials to build new cells. The food we eat needs to be broken down so that our bodies can use it to make energy. Food is broken down by our digestive system and then taken around our body by the circulatory system (the blood).


Food provides us with fuel to live, energy to work and play, and the raw materials to build new cells......MOUTH, STOMACH, INTESTINES, LIVER etc



Breathing and The Respiratory System

When we breathe, the body takes in the oxygen that it needs and removes the carbon dioxide that it doesn't need.


The respiratory system is the system of the body that deals with breathing. LUNGS


The Skeleton and Muscles

The Skeleton is the name given to the collection of bones that holds the our body up.

Our skeleton is very important to us. It does three major jobs.

  1. Protection
    It protects our vital organs such as the brain, the heart and the lungs.
  2. Support
    It gives us the shape that we have. Our skeleton supports our body, without our skeleton we would just be a blob of blood and tissue on the floor.
  3. Movement
    It allows us to move. Because our muscles are attached to our bones, when our muscles move, they move the bones, and we move.

Fun Facts

  • The brain uses over a quarter of the oxygen used by the human body. More human brain facts.

  • Your heart beats around 100000 times a day, 36500000 times a year and over a billion times if you live beyond 30. More human heart facts.

  • Red blood cells carry oxygen around the body. They are created inside the bone marrow of your bones. More blood facts.

  • The colour of a humans skin is determined by the level of pigment melanin that the body produces. Those with small amounts of melanin have light skin while those with large amounts have dark skin. More skin facts.

  • Adult lungs have a surface area of around 70 square metres! More lung facts.

  • Humans have a stage of sleep that features rapid eye movement (REM). REM sleep makes up around 25% of total sleep time and is often when you have your most vivid dreams. More eye facts.
  • The smallest bone found in the human body is located in the middle ear. The staples (or stirrup) bone is only 2.8 millimetres long. More ear facts.
  • Your nose and ears continue growing throughout your entire life. More nose facts.
  • Infants blink only once or twice a minute while adults average around 10.
  • As well as having unique fingerprints, humans also have unique tongue prints.

  • The left side of your body is controlled by the right side of your brain while the right side of your body is controlled by the left side of your brain.

  • Antibiotics are only effective against bacteria, they won't help in fighting off a virus.
  • It takes the body around 12 hours to completely digest eaten food.
  • Your sense of smell is around 10000 times more sensitive than your sense of taste. More senses facts.

Science for kids | Blood | Cardiovascular System | Body Parts| Experiments for kids | Operation Ouch

How does BLOOD circulate around the Cardiovascular System? Here body parts and biology are explained to kids. Operation Ouch is a British science show for kids that is full of experiments and biological learnings.

Operation Ouch - Digestion | Biology for Kids

Subscribe to the Operation Ouch official channel! Click here: https://www.youtube.com/c/operationouch Watch these amazing body experiments for kids! This week, Dr.Chris swallows a camera! You can buy the book here https://www.amazon.co.uk/Operation-Ouch-HuManual-Ben-Elcomb-ebook/dp/B073WPMPX1/ref=sr_1_fkmr0_1?s=digital-text&ie=UTF8&qid=1507123643&sr=1-1-fkmr0&keywords=operation+ouch+humanuel and download the series here https://itunes.apple.com/gb/tv-season/operation-ouch-season-6/id1369101462 Operation Ouch is packed with incredible facts about the human body and fronted by identical twins Dr.Chris and Dr. Xand van Tulleken who experiment and explore their way through the fascinating world of medicine and biology.

Science for kids | Body Parts - SKELETONS | Operation Ouch | Experiments for kids

Subscribe for more: https://goo.gl/iDvxKs Learn all about the human skeleton with Dr Chris and Dr Xand as they explore broken, fractured and even fake bones! Operation Ouch is a science show for kids that is full of experiments and biological learnings.

Science for kids | Body Parts - MUSCLES | Experiments for kids | Operation Ouch

Subscribe for more: https://goo.gl/iDvxKs Dr Chris and Dr Xand are looking at muscles and how the muscular system works! Operation Ouch is a science show for kids that is full of experiments and biological learnings.

Circulatory & Respiratory System Knowledge Organiser