CK-12 Foundation
Ck 12: Life Science: 2.3 Cell Theory
Learn about the cell theory and levels of organization in a multicellular organism.
Estrella Mountain Community College
Estrella Community College: Animal Cells and Tissues
Notes on different tissues of the body such as: connective, epithelial, muscle, and nervous. Helpful terms and definitions as well as review questions. Colorful graphics of important terms are also provided.
My Science Site
Plant Cells & Tissues, Part 1: Plant, Three Tissue Systems, Ground Tissue [Pdf]
This resource shows the dissection of a plant cell and labels the parts. Also provided is an in-depth discussion of the ground tissue system. This resource is in PDF form; requires Adobe Reader.
Exploring Nature
Exploring Nature Educational Resource: 4 Basic Tissue Types in the Human Body
Facts about four basic types of tissues in the human body and their functions.
PBS
Pbs Teachers: Scientific Breakthroughs in Germany: Curing the Storm in the Head
Explore medical breakthroughs in treating epilepsy. Discover how negative and positive particles behave in an electrically neutral environment, and perform an experiment to demonstrate how the human body can conduct electricity.
My Science Site
Bj's Science: Epithelia, Connective Tissue, and Nervous Tissue [Pdf]
Reference sheet providing colorful illustrations of the different cell types that make up tissues.
My Science Site
Different Types of Cells: Muscle, Blood, Sensory, Germ Cells [Pdf]
Page providing colorful illustrations of blood cells, sensory cells, muscle tissue, and epithelial cells.
Ducksters
Ducksters: Biology for Kids: Organs
Study all about the biology of the body's specialized tissues called organs. Also organ systems including nervous, digestive, respiratory, endocrine, and circulatory on this site.