biology working models including botany and zoology working models
The human hand is one of the most important parts of our body. It helps us hold, grab, write, and do many daily tasks. The hand can move in different ways because it has joints, which are places where bones meet. A hinge joint is a type of joint that works like a door – … Read more
Concept Overview: The human heart is one of the most important organs in the body. It is a muscular organ, about the size of a fist, located in the chest slightly towards the left side. The heart works like a pump, sending blood to all parts of the body. The heart has four chambers – … Read more
Introduction The human digestive system is a group of organs that helps the body break down food, absorb nutrients, and remove waste. It starts from the mouth and ends at the anus. In the mouth, food is chewed by teeth and mixed with saliva, which contains enzymes to start breaking down starch. The chewed food … Read more
This is a rotating wheel model showing the seed germination cycle.As we rotate the top wheel, we can see the different stages in the life of a plant — from a seed, to germinating seed, then a seedling, followed by a young plant, and finally a mature plant that produces seeds again. This cycle shows … Read more
This is a working model of the human respiratory system.The plastic bottle represents the chest cavity.The two balloons inside are our lungs, and the straws act as the trachea and bronchi.The balloon at the bottom represents the diaphragm, which plays a key role in breathing. When we pull the bottom balloon (diaphragm) downward using the … Read more