Science is the study of the world around us. Scientists learn about their subject by observing, describing, and experimenting. There are many subjects and branches of science. Some study outer space like astronomy. Other sciences study life. (biology)
Definition of science for Students. 1 :knowledge about the natural world that is based on facts learned through experiments and observation. 2 :an area of study that deals with the natural world (as biology or physics) 3 :a subject that is formally studied. the science of linguistics.
These notes provide an image of science teaching and learning in the early childhood classroom in which teachers and children are engaged in inquiries intoscientific phenomena—animal behaviors and, more specifically, the behaviors of snails.
What is biology?
Biology is the branch of science that studies life and living organisms. This includes such subjects as the cell, genes, inheritance, microorganisms, plants, animals, and the human body.
There are many branches of science that are part of biology including ecology (how organisms interact with their environment), agriculture (the study of producing crops from the land), biochemistry (the chemical reactions needed to support life), botany (the study of plants), physiology (how living organisms function), and zoology (the study of animals)
The word biology comes from the Greek words “bios” which means life and “logia” which means “study of”. Put those two words together and you get the “study of life.”
The cell – The cell is the fundamental unit of all life. Every living organism is made up of one or more cells.
Genetics – Genetics is the study of how organisms pass on features and traits from generation to generation.
Homeostasis – Homeostasis is the process by which an organism or cell is able to regulate its conditions. For example, humans are able to regulate their body temperature to 98.6 degrees.
Energy – All living organisms are able to use external substances for energy. For example, humans use food such as vegetables and meat. Plants gather energy from the Sun through photosynthesis.
The human body is a complex biological system involving cells, tissues, organs, and systems all working together to make up a human being.
Main Structures From the outside, the human body can be divided into several main structures. The head houses the brain which controls the body. The neck and trunk house many of the important systems that keep the body alive and healthy. The limbs (arms and legs) help the body to move about and function in the world.
Senses– The human body has five main senses that it uses to convey information about the outside world to the brain. These senses include sight (eyes), (ears)Hearing and the Ear, smell (nose), taste (tongue), and touch (skin).