CK-12 Foundation
Ck 12: Characteristics of Life
[Free Registration/Login may be required to access all resource tools.] Videos, texts, activities, and assessments about the factors that characterize living things.
CK-12 Foundation
Ck 12: Cell Biology
[Free Registration/Login may be required to access all resource tools.] Read grade-level texts, complete activities, and take assessments about cell biology.
eSchool Today
E School Today: Living Organisms Are Made Up of Cells
Discover how living things are made up of cells.
Scholastic
Scholastic: Study Jams! Science: Animals: Animal Cells
A slideshow and a short multiple-choice quiz on the topic of animal cells.
CPALMS
Florida State University Cpalms: Florida Students: The Cell Theory
Learn how the Cell Theory defines living organisms.
Biology 4 kids
Biology4 Kids: Cell Structure
Informational, illustrated site covers the basics of cell structures and various cell types.
CK-12 Foundation
Ck 12: Life Science: Cell Biology
[Free Registration/Login may be required to access all resource tools.] A cell is the smallest structural and functional unit of an organism. Learn more about cell biology in this learning module produced by CK-12.
E-learning for Kids
E Learning for Kids: Science: Antarctica: How Are Living Things Described?
Learn about the different levels of organization in living things, from cells to organisms.
CK-12 Foundation
Ck 12: Biology: Cell Biology
[Free Registration/Login may be required to access all resource tools.] Introduces cells, cell theory, and the levels of organization in organisms.