For the month of November 6th class were learning all about global warming, climate change and sustainability. They created amazing projects based on what they had learned. Well done 6th class!

We did a very cool science experiment which led to the creation of lava lamps.

First we mixed oil and water. The oil floated on top of the water because it is less dense or lighter than water. Next we added some food colouring. Food colouring has the same density as water so it sunk through the oil and mixed with the water. Then we added an effervescent tablet. We noticed that the tablet sunk to the bottom and started to dissolve in the water. A chemical reaction then occurred which produced a gas, carbon dioxide. Gas or air, is lighter than water so it floated to the top. The air bubbles brought some colored water with them to the top. When the air came out of the colored water blob, the water got heavy again and sunk back to the bottom. This process occurred over and over again until the tablet was completely dissolved.