biology working models including botany and zoology working models
1. Introduction Good morning, respected judges, teachers, and my dear friends. Today, I am going to explain my science project, “Human Respiratory System Working Model.” The respiratory system helps us breathe. It supplies oxygen to our body and removes carbon dioxide. The main organs of this system include the nose, trachea, bronchi, and lungs. My … Read more
ಮಾನವನ ಹೃದಯವು ರಕ್ತವನ್ನು ದೇಹದ ಎಲ್ಲಾ ಭಾಗಗಳಿಗೆ ಪಂಪ್ ಮಾಡುವ ಪ್ರಮುಖ ಅಂಗವಾಗಿದೆ. ಹೃದಯವು ಎದೆಯ ಭಾಗದಲ್ಲಿ, ಸ್ವಲ್ಪ ಎಡಭಾಗಕ್ಕೆ ಇರುತ್ತದೆ. ಮಾನವನ ಹೃದಯದಲ್ಲಿ ನಾಲ್ಕು ಕೋಣೆಗಳಿವೆ. ಮೇಲಿನ ಎರಡು ಕೋಣೆಗಳನ್ನು ಹೃತ್ಕರ್ಣಗಳು (Atria) ಎಂದು ಕರೆಯುತ್ತಾರೆ. ಕೆಳಗಿನ ಎರಡು ಕೋಣೆಗಳನ್ನು ಹೃತ್ಕುಕ್ಷಿಗಳು (Ventricles) ಎಂದು ಕರೆಯುತ್ತಾರೆ. ಬಲ ಹೃತ್ಕರ್ಣವು ದೇಹದಿಂದ ಆಮ್ಲಜನಕ ಕಡಿಮೆ ಇರುವ ರಕ್ತವನ್ನು ಸ್ವೀಕರಿಸುತ್ತದೆ. ಈ ರಕ್ತವು ಮೇಲಿನ ಮತ್ತು ಕೆಳಗಿನ ಮಹಾಸಿರೆಗಳ (Vena Cava) ಮೂಲಕ ಹೃದಯವನ್ನು ತಲುಪುತ್ತದೆ. ಬಲ ಹೃತ್ಕರ್ಣದಿಂದ … Read more
This Human Respiratory System Working Model is an excellent biology science exhibition project that demonstrates how breathing takes place in the human body. The model can be made using balloons, transparent pipes, cardboard, straws, and simple craft materials. The main working principle is based on the movement of air into and out of the lungs … Read more
Introduction A microscope is an optical instrument used to observe objects that are too small to be seen clearly with the naked eye. It is widely used in biology, medicine, research, and science laboratories. A microscope helps us study cells, microorganisms, plant structures, fibers, and many other tiny objects. This project demonstrates a simple DIY … Read more
Introduction A First Aid Box is a collection of basic medical supplies used to provide immediate care when someone gets a minor injury or suddenly becomes unwell. It is useful at home, schools, workplaces, vehicles, and public places. First aid does not replace professional medical treatment, but it can help control bleeding, protect wounds, reduce … Read more