The distinct smell of being at the ocean is one of my favorites. Here's an info graphic that explains the chemistry behind the aroma. This reminds me a lot of what we did the first day of class on aromatics.
Electromagnetic Spectrum NASA
Color Changing Milk of Magnesia - The Lab
A Billion Degrees of Separation: TEMPERATURE - From absolute zero to 'absolute hot'
Turn Milk into Plastic! - great science experiment to make plastic!