If you have ever had to adjust to a new time zone, you have noticed that it takes a while before you start to feel normal again. By shifting your sleep and activity schedule, you have altered the pattern of your body's circadian rhythms....

Self-guided learning activity where students learn about the functions, processes, and anatomy of the human body. There is a short quiz at the end of the lesson to check for understanding.

Explore the many systems found within the human body.

A 22-page textbook chapter identifying sensory systems of animals and humans for those studying how the various senses assist adaptation to environments. Investigates classes of environmental stimuli as well as gives an in-depth...

This is a student-led exploration of the systems of the human body, through technology. Students will work cooperatively to develop a PowerPoint presentation that will thoroughly explain each system. Systems included are: circulatory...

Explore how the human body rids itself of wastes with the function of the kidneys.

An illustrated article which helps students understand the levels of organization of the human body.

The moon appears bigger at the horizon just as it is rising over the treetops, than it does later in the evening when it is overhead. This is because our perception of its size changes based on where it is in the sky. In this human...

Did you know that some teachers give their students a peppermint candy on state testing days? Is it to give the kids sweet-smelling breath? Or are the teachers hoping for something more on the important testing day? In this human biology...

This site helps you understand the human skeletal system, a body system composed of bones and cartilage that performs critical functions for the human body.

This article helps students identify the process by which body systems are regulated so that they remain stable.

Throughout the day, your nervous system monitors and makes endless adjustments to your body's basic systems--all to keep you alive. This interactive feature illustrates the complexity of such a task.

From a chapter on Fluid Statics in a Physics textbook. This section of the chapter covers the different types of fluid pressures in the human body and how they are measured. Includes problems and exercises.

Take a look inside the human body's digestive system. This site features diagrams of the digestive tract and each part is accompanied by labels and descriptions. Just select an organ by moving the mouse over its image.

Excellently detailed drawing (with labels) of the digestive system with an accompanying explanation of the digestive process. Includes a glossary and a blank label me print-out.

Pizza, milk shakes, and ice cream sundaes all contain dairy products, therefore they cannot be eaten by the majority of people around the world. Dairy products contain the sugar molecule lactose, and the majority of people on the planet...

After studying this article, students will be able to identify the functions and structure of bones, types of bones, bone development, parts of bones, types of joints, and bone disorders.

At this site, students can interact with the muscular system of the human body. Click on a region of the body or the name of a muscle, and zoom in to examine it. Outlines and magnifying glasses appear and when you click on them, you see...

Self-guided learning activity where students learn about the structure and function of the human muscular system. There is a short quiz at the end of the lesson to check for understanding.

Self-guided learning activity where students learn about the structure and function of the human lymphatic system. There is a short quiz at the end of the lesson to check for understanding.

Our brains are split into two parts, right inside our head. One half is the left brain and the other half is the right brain. Each side of your brain controls different parts of your body and most people are more dominant controlling one...

Thinking about improving your sports performance? Want to help friends and family make the most of their physical fitness activities? One factor to consider is food. Whether you realize it or not, what you eat does change your body. It...

Through informational text, video clips, practice problems, and external assignments, students discover the structure and function of the endocrine system of the human body.

Self-guided learning activity where students learn about the structure and function of the human cardiovascular system. There is a short quiz at the end of the lesson to check for understanding.