All matter is comprised of one of more of over 100 elements. All objects experience a buoyant force when immersed in a fluid. Chemical reactions are processes in which atoms are rearranged into different combinations of molecules. The organization of the Periodic Table is based on the properties of the elements and reflects the structure of atoms. Through the studey of cells, genetics and the history of life, students will learn about the unity and diversity of all living things.
Scientific progress is made by asking meaningful questions and conducting careful investigations.
All living organisms are composed of cells, from just one to many trillions, whose details usually are visible only thorugh a microscope. A typical cell of any organism contains genetic instructions that specify its traits. Those traits may be modified by environmental influences. Biological evoluntion accounts for the diversity of species developed through gradual processes over many generations. Structure and Funciton in Lviing Systems, Human anatomy and physiology show how structure and function work together to support life.