Cells and Systems
Living things take a variety of forms as reflected in their structures, internal processes and ways of responding to their environments. Finding pattern within this diversity has been a major challenge for the biological sciences and has led to the development of ideas, such as systems, cells, structures and functions—ideas developed from the study of all living things. Using these ideas, students learn to interpret life at a variety of levels, from individual cells to complex organisms. To develop their understanding, students investigate ways that components of a living system work together and, through these studies, learn that healthy organisms—including healthy humans—function as balanced systems within a life-supporting environment.
Students learn about the functions and structures of all living organisms.
Microscopes and Cells
Students explore the microscopic world using microscopes.
The Cell and Its Structure
Students explore the basic structure of animal and plant cells.
Fluid Movement in Cells
Students explore the phenomenon of diffusion, osmosis, and transpiration in cells.
Cell Specialization and Organization
Students explore the structure and function of multicellular cells.
Body Systems in Humans
In this lesson we cover the five major human body systems: digestive, respiratory, circulatory, nervous, and excretory.