Rising Water

Today my little scientist and I had a great time doing #PatioScience with @johnscalzi thanks @mysuncoastview The original story can be found here: https://www.mysuncoast.com/video/2020/03/25/scalzi-science-club-what-up-with-air-part-suncoast-view/

Materials

Rising Water (3)

Tin Foil Ball

Tea Light Candle

Clear Pie Pan

Clear Glass Jar ( We recycled an Alfredo jar)

Lighter

Water with Pitcher (We used a large Measuring Cup)

Investigation

**Only Adults Should Use the Lighter and complete step 3.**

1. Place your tin foil ball into the center of your pie pan. Balance your tea light candle on top. (It might take you a couple time to get the hang of it)Rising Water (8)

2. Fill the pie pan so that most of your tin foil ball is cover. If it starts to float you have added too much water.Rising Water (14)

3. Light you tea light candle and cover with your jar.Rising Water (25)

4. What closely and observe any changes you see to the jar and water level.Rising Water (57)

Talking Points

In today’s investigation we watched our jar get foggy as the tea light candle burned out and the water level rose causing our tin foil to float and knock over our candle.

The candle heats the air in the jar and it causes the air molecules to expand or spread out. When the oxygen in the jar is used up it caused the flame to go out. Once the flame is out the air starts to cool the air molecule contracts or get closer to one another. As the water contracts it creates a vacuum effect that sucks the water into the jar. When the water level rises in the jar the tin foil ball begins to float and it knocks over the candle.

If you looked closely at the jar it was slightly foggy. The moisture in the air started to Condense (when water vapor cools off, also the process from the water cycle that forms clouds) onto the cooler glass. To learn more about the water cycle try our water cycle in a bag investigation or listen to the water cycle song.

 

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