Curated OER
Kids Health: Why Am I So Sad
Feeling sad is something that everyone has to deal with. Some people feel sad more often than others, some people feel it more intensely than others. There are ways to get over sadness, but it is a natural feeling that you cannot escape...
Mayo Clinic
Mayo Clinic: Seasonal Affective Disorder
This site from the MayoClinic.com provides great information on the seasonal affective disorder, or SAD. The article includes sections such as: overview, signs and symptoms, causes, screening, diagnosis, and treatment.
Soft Schools
Soft Schools: Food Chains Quiz
Take an interactive quiz over food chains. After completing the quiz, check your score, and then revisit any incorrect question for further review.
Exploratorium
Exploratorium: The Science of Sports Cycling
A detailed look at the aerodynamic principles associated with cycling. Good science and even better web page design. Includes an online calculator that allows the user to calculate the aerodynamic drag and propulsive power of a bicyclist...