Our bodies are super cool! There are so many things going on in it that we still don’t fully understand to this day. The mouth produces nearly one liter of saliva every day. Did you know that you shed nearly ten pounds of skin cells every year? In your lifetime, your heart will beat just about three billion (with a B) times. Some more numbers for you... The human body is made up of two-hundred and six bones working in concert with your three-hundred and twenty pairs of muscles. The top half of the body, the head, houses the control center organ of the body called the brain. The center part of the body is often referred to as the core and houses most major organ systems. The arms and legs that build off of the core are needed for movement and doing work.

There so many things about our bodies that we do not take time to even comprehend. In your lifetime you will shed forty-five pounds of skin. In your lifetime, you will make enough saliva to fill two whole swimming pools. Tongues are very unique in fact; the tongue print is slightly more accurate than any single fingerprint. The human body is vastly complex. The worksheets found below will help you understand basic human anatomy and physiology. These worksheets cover a huge scale of topics including all the major organs and tissues. We look at the meaning of blood types and the movement of a digested apple. Every organ system is grouped together to attempt to move from the macro level (full picture) to the micro level (individual tissues). This collection has been cited by hundreds of NSTA teachers at a recent conference. We have something for pretty much all grade levels. If you see something that we are missing in the series, please let us know.