Science

Biology for Kids

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).

Biology Subjects

Cell The Cell Cell Cycle and Division Nucleus Ribosomes Mitochondria Chloroplasts Proteins Enzymes The Human Body Human Body Brain Nervous System Digestive System Sight and the Eye Hearing and the Ear Smelling and Tasting Skin Muscles Breathing Blood and Heart Bones List of Human Bones Immune System Organs

Nutrition Nutrition Vitamins and Minerals Carbohydrates Lipids Enzymes Genetics Genetics Chromosomes DNA Mendel and Heredity Hereditary Patterns Proteins and Amino Acids Plants Photosynthesis Plant Structure Plant Defenses Flowering Plants Non-Flowering Plants Trees

Living Organisms Scientific Classification Animals Bacteria Protists Fungi Viruses Disease Infectious Disease Medicine and Pharmaceutical Drugs Epidemics and Pandemics Historical Epidemics and Pandemics Immune System Cancer Concussions Diabetes Influenza

Fundamentals of Biology

Biology is based on some key theories and fundamentals:

• 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 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."

Activities

Biology Crossword Puzzle
Biology Word Search

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