Convection | Jazarasnotebook

How can we see convection? We can feel it, we can smell it, we can hear it but not see it. There is a way to see convection happen! This is by the food coloring expeirment what you have to do for the experiment is:

Fill two bottles with warm water from the tap and the other two bottles with cold water. Use food coloring or the Fizzers coloring tablets to color the warm water yellow and the cold water blue. Each bottle must be filled to the brim with water.

Hot over cold: Place the index card or old playing card over the mouth of one of the warm water bottles. Hold the card in place as you turn the bottle upside down and rest it on top of one of the cold water bottles. The bottles should be positioned so that they are mouth to mouth with the card separating the two liquids. You may want to do this over a sink.

Carefully slip the card out from in between the two bottles. Make sure that you are holding onto the top bottle when you remove the card. Observe what happens to the colored liquids in the two bottles.Cold over hot: Repeat steps 2 and 3, but this time place the bottle of cold water on top of the warm water.

Observe what happens.- See more at: http://www.stevespanglerscience.com/lab/experiments/colorful-convection-currents#sthash.8MUJnTEy.dpuf

This works because when you put the cold water over the warm it becomes more dense and the more the water sinks. That is How we can see convection! Thats how we can feel it and we can smell it and also we can hear it but now see it!!