Question 1:
Do you know the reason ice floats in your drink? It is because the density of ice is lower than that of water. Chemistry is happening all around you at all times (both physical and chemical changes). What have you observed within the last week that involves chemistry? What is that process/reaction?

Your journal entry must be at least 200 words in length. No references or citations are necessary.



Question 2:
The air that we breathe is the most common gas in the world. It is something that is being harmed to an extreme extent. What is the air quality in your local area? Be sure to include your thoughts on why you consider your air quality to be above or below the worldwide average air quality. In what ways do you think your local air quality could be maintained (if good) or improved (if poor)?

Some websites that can help you answer these questions include:

World's Air Pollution: Real-Time Air Quality Index

U.S. Environmental Protection Agency: Outdoor Air Quality Data: Interactive Map of Air Quality Monitors

Your journal entry must be at least 200 words in length. No references or citations are necessary.