Oil and water do not mix and will separate themselves! Even
if you try and shake a bottle of them together, the oil will divide into small
droplets and begin to float to the water’s surface! This happens because water
is denser than oil, meaning that water has more mass in the same amount of
space as oil.
What is a chemical reaction? A chemical reaction occurs when
two or more substances are converted into a new substance! By adding an
Alka-Seltzer tablet into water, you are initiating a chemical reaction! The
water is reacting with the Alka-Seltzer tablet, creating carbon dioxide gas!
While your Alka-Seltzer tablet reacts with water, it begins
to create carbon dioxide bubbled in the water, floating to the cups surface.
While climbing to the top of the cup, it must pass through the oil! This
creates the very slow moving, colorful lava lamp effect! Once the bubble pops,
the colored water sinks back into the water!
Get the instructions for today’s experiment of the day by
visiting: https://sciencemadefun.net/downloads/lava_alka.pdf
