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Changing States of Water – High Specific Heat

In this final video of the water series, Science Mom’s Guide to Water, Part 7 – High Specific Heat, we explore water changing states with five activities: evaporation sensation, water cycle in a jar, rain in a jar, water from dirt, and pop-proof balloon.

The concluding installment in the water series, a look at evaporative cooling, changes of state, and how water has an impressively high specific heat capacity. The ability of water to absorb a lot of heat before changing temperature is known as having a “high specific heat capacity.” This attribute of water regulates the temperature of our planet, helps us cool down when we sweat, and much more.

Parental supervision is recommended if repeating some of these experiments at home.

 

Journal Questions
  1. In the video, Science Mom wrapped the ends of four thermometers in napkins.  She left one napkin dry and wet the other napkins with oil, water, and rubbing alcohol.  Which thermometer did you predict would have the largest drop in temperature?  Which one actually had the most evaporative cooling?  Why was that?
  2. When Science Mom made a cloud in a 2 liter bottle what caused the water and rubbing alcohol to condense?
  3. Why did the balloon filled with the most water take longer to pop?
  4. If you tried any of these experiments on your own, what did you find?

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Topics

Science
Grade Level
2-3
4-5
6-8

Creator

Picture of Science Mom

Science Mom

Engaging science activities for kids of all ages.

Materials

  • 4 thermometers
  • napkins
  • oil
  • water
  • rubbing alcohol
  • fan
  • hot water
  • jar
  • ice
  • plate
  • bike pump
  • cork
  • 2-liter bottle
  • shaving cream
  • cups
  • food coloring
  • shovel
  • tarp
  • bowl
  • balloons
  • candle
  • matches

Downloads

SMG7-8.5x11

Related Activities

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Water – a Universal Solvent
In Science Mom’s Guide to Water, Part 6 – Universal Solvent, we learn why things dissolve and why with six hands-on activities: salt crystals, halocline eggs, eggshell geodes, borax snowflakes, rock candy, and bath bombs.
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  Photography by: Georgina Emily Photography

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