Author: Dr. S

Check out this interesting chemistry video sponsored by American Chemical Society! Review questions: What are the types of molecules that are in milk? Are detergent molecules charged? (negatively charged, positively charged or no charge)? Why did the colors move in Read more

Sound waves are created by vibrating objects that collide into adjacent air molecules. These air molecules collide into other nearby air molecules and so on, thereby transmitting the vibration through the air to our ears. Vibrations cause sounds and sounds Read more

Scientific Method is a problem-solving tool used to determine the validity of a hypothesis. It is an organized process for finding a solution to a question. Source: http://barnett.nebo.edu/ Source: http://barnett.nebo.edu/

How does a virus that may have originated in bats jump to humans? How do we model the spread of an infection? And how do racial inequities in health and healthcare affect how a pandemic unfolds? For part one of Read more