Students investigate how many seasons it would take for wind to disperse seeds one mile downwind from an initial growth of one spotted knapweed plant. They construct and use a wind tunnel as part of their experiment and graph their results.

Fourth graders construct individual props. In this theatrical arts lesson, 4th graders use the elements of art to create various props using paper mache. Students construct objects such as logs, fruit, and a picture frame.

Discusses the methods the human body uses to regulate body temperature. Includes links to the four external heat transfer mechanisms (radiation, conduction, convection, and evaporation of perspiration).

This site explores the various systems in the human body such as the circulatory, respiratory, and excretory systems.

Read about the findings from the scientific group from the National Center for Human Genome Research, which published a modification to traditional karyotyping that permits rapid identification of chromosomal alterations.

A set of sixteen multiple-choice questions. Once solved, incorrect answers are linked to tutorials to help solve the problem.

Find out what the human body needs to function at its best, and why.

This teacher's guide introduces children to the human body and the five senses and covers the major body parts and what they do. Children also will use their five senses to learn about the world.

This problem set is designed to increase students' knowledge of sexually transmitted diseases (STDs). It identifies the most common contemporary sexually transmitted diseases and describes their symptoms, modes of transmission, and...

Facts about four basic types of tissues in the human body and their functions.

This article explores the changes an astronaut's body goes through in space. Also find the answer to many other fascinating questions people have about space travel.

Learn about the three types of muscle tissue, how a muscle contracts, and how muscles are adapted for exercise. [3:40]

Family studies are a good way to learn about DNA profiling and RFLP analysis because students can follow the inheritance of DNA markers from one generation to the next. Students have the opportunity to do this in this activity.

In this activity, students learn the concepts and techniques behind DNA profiling of the national DNA databank. Students will then have the opportunity to collect and interpret actual STR data, and to answer one or more questions.

A 3D anatomical product that allows students to explore the muscles, bones, organs, skin, and blood vessels that compose the human body.

In this fourth unit of an intermediate Spanish course, students learn about and present information about the art, music, and literature of a Spanish-speaking country in Central America or the Caribbean. They also develop vocabulary...

Study the many parts of the human body that make up the sensory systems. Be able to identify receptors, primary sensory coding, neural pathways and more with this biology resource.

Virtual learning course on human biology and brain function and how it affects our behaviors. Extensive collection of engaging materials, assignments, and activities for review.

Students have the opportunity to interpret actual case results from the use of the Restriction Fragment Length Polymorphism (RFLP) method to characterize human DNA samples as applied in paternity analysis and sex crimes investigations.

Students practice a problem using DNA profile analysis to characterize human DNA samples as applied in paternity analysis and sex crimes investigations.

A historically significant translation of the groundbreaking text on human anatomy that changed the study of anatomy forever.

See how the human heart moves blood through the body in this animated feature from the NOVA: "Cut to the Heart" Web site.

Rotatable three-dimensional model of the body with components of the urinary system (male) labeled.

There are battles that are fought each day on the planet. The invading forces are those of viruses and bacteria. Left alone they would take over and destroy every cell! It is up to some key defense systems to battle and destroy these...