Moving Hot and Cold Water

Is it true that cold things move more slowly? Even something that isn't alive, like water? Let's find out!

Step-by-step tutorial

  • Step 1

    We love doing science projects outside in the summertime! For this one, we just set up our little tray that usually holds our paints, and set to work. One bowl of hot water, and one for cold.

    Photo reference of how to complete step 1

  • Step 2

    A drop or two of red for the hot water....

    Photo reference of how to complete step 2

  • Step 3

    and then a drop or two for cold.

    Photo reference of how to complete step 3

  • Step 4

    Let's see what's happening... Hmm.... seems the hot is traveling a lot faster...

    Photo reference of how to complete step 4

  • Step 5

    Count for a minute.....

    Photo reference of how to complete step 5

  • Step 6

    ...sing a song...

    Photo reference of how to complete step 6

  • Done!

    ...and how did it turn out? The red (hot) definitely has mixed more! So water moves! Actually, the molecules move... temperature is a measurement of energy, it seems to us that 'hot' makes it move more, but the speed (activity) of the movement of the molecules is really what makes it feel different! The higher the energy, the higher the temperature. Cool!

    Photo reference of how to complete step 7

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