Kate's Corner: Warm vs. cold water diffusion

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BRIDGEPORT, W. Va. (WDTV) - In the previous Kate's Corner, we learned all about diffusion. In this edition, we are going to see diffusion in action with a simple experiment.

All you need is 2 cups of what and food coloring. One cup though needs to be filled with cold water and the other needs to be filled with warm water.

All you have to do is put in one drop of food coloring in each cup and see which one spreads out the color the fastest.

The cup with the warm water quickly spreads out the food coloring while the cold water takes a long time. Why is this?

Well, as discussed in our science lesson, warmer temperature means a greater rate of diffusion. Since the water is warm, the molecules have a lot of energy and have a lot of movement. The increase in movement spreads out the food coloring much faster than the cold water.