NSO- National Science Olympiad | C-3 Human body | Class-2 | Science Olympaid Practice Questions |

NSO- National Science Olympiad | C-3 Human body | Class-2 | Science Olympaid Practice Questions |
This video is about 1. Our body and Its parts:
• our body is a living machine. It has two types of organs: external organs and internal organs.
• The parts of our body that we can see from outside are called external organs like head , arms , legs, eyes, ears ,nose and and tongue.
• The parts that are inside the body are called internal organs like brain, heart, lungs, kidneys and stomach.
a. Brain helps us to think and work.
b. Heart pumps blood to all parts of the body.
c.Lungs help us to breathe.
d. Stomach breaks down or digest the food we eat.
2. Sense organs and our senses : We have five sense organs.
a. Eyes helps us to see.
b. Ears help us to hear.
c. Tongue helps us to taste.
d. Skin helps us to feel.
e. Nose helps us to smell.
3. Importance of correct posture
4. Bones and muscles:
• Our body is made up of bones and muscles.
• All the bones in the body join together to form a skeleton.
• The place where two or more bones meet is called a joint.
• The skull covers and protects the brain and ribs primarily protect the heart and lungs.
• Bones give shape and support to our body.
• Muscles help our bones to move.
• Regular exercise makes our muscles strong.
• The correct posture helps us to stay healthy and to look smart.
MCQs with Explanations and Achievers section.
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