Organisms have a variety of relationships. In this lesson, students learn to categorize relationships according to their impact on organisms and the terminology for these biological interactions.

Learn about the training and experience required to become a lab tech in biology.

This comprehensive study guide covers the main terms and concepts needed for a biology unit on birds.

A lesson plan that takes learners through the process of organizing a set of biological picture cards according to levels of complexity.

Find out about the first and second laws of thermodynamics, and how they relate to the biology of life.

A site with information about the hereditary patterns in the science of biology including dominant and recessive genes, alleles, the Punnet square, examples, and interesting facts.

Kids learn about flowering plants in the science of biology including their life-cycle, structures of a flower, fruit, seeds, and pollination.

Kids learn about the medical condition the concussions in the science of biology including symptoms, types, grades, treatments, prevention, and interesting facts.

A site about cell division and the cell cycle in the science of biology including mitosis, meiosis, and binary fission.

Study proteins and amino acids in the science of biology including how they are made using DNA, transcription, and translation and different types of proteins on this site.

Kids learn about the viruses in the science of biology on this site. Find about how these tiny particles of DNA can make people and animals very sick when they invade a living organism's cells.

A set of virtual experiment assignments where students investigate the process of photosynthesis and how it varies with different types of plants. They will change experimental conditions to see how different factors affect the rate of...

A set of virtual experiment assignments where students investigate the biochemistry of hemoglobin and the role it plays in the functioning of human red blood cells. Includes background information, glossary, online notebook, and...

A comprehensive set of virtual experiment assignments where students explore the roles of blood pressure and heart rate in maintaining a balanced cardiovascular system. Includes background information, glossary, online notebook, and...

Site contains experiments students can do in the classroom to enhance their understanding of biological rhythms.

Kids learn more about the science of the cell. Smallest biological form of life.

The goal of this plant biology science fair project is to make and test an herbicide made from the leaves of the black walnut tree and investigate the toxicity of black walnut trees.

[Free Registration/Login may be required to access all resource tools.] Explains the body's first line of defense against pathogens, such as the skin and body fluids.

[Free Registration/Login may be required to access all resource tools.] Covers the role of the lymphatic system in the immune response.

[Free Registration/Login may be required to access all resource tools.] Introduces cells, tissues, organs, and organ systems in the human body.

[Free Registration/Login may be required to access all resource tools.] Covers female reproductive structures and their functions.

[Free Registration/Login may be required to access all resource tools.] Overview of population size, density, and distribution.

[Free Registration/Login may be required to access all resource tools.] Describes the two major divisions of the peripheral nervous system and their functions.

This comprehensive study guide covers the main terms and concepts needed for a unit on biomes.