Learn how the sense organs are structured and how they function to provide you with five senses.

How does the sense of touch work? Is the sense of touch more sensitive in some parts of the body, such as fingertips, than in others? In this instructional activity students explore the sense of touch by identifying mystery objects with...

Learn how to type correctly or test your typing skills with this free tutorial.

Students are introduced to chemical engineering and learn about its many different applications. They are provided with a basic introduction to matter and its different properties and states. An associated hands-on activity gives...