Friday, May 30, 2014

Making Fog Bubbles With Dry Ice…Teaching Science…Interactive Notebooks

Want to try a really fun science experiment with your students? 

To make a fog bubble you will need:


  • a large bowl with a lip around the top
  • a strip of cloth
  • bubble solution
  • dry ice (can be purchased in grocery stores)






Safety First: Adults should handle the dry ice with gloves.  Do not let the children touch the dry ice.  It can cause skin reactions.



Directions:
1. Place the dry ice in the bowl and add a little water.
2. Place the strip of cloth in the bubble solution. Get a generous amount of solution on the cloth.
3. Run the cloth around the lip of the bowl and then drag it across the bowl to form a bubble.
4. Now watch what happens!






Concepts you can teach through this?   Is it a physical or chemical change?  What is carbon dioxide?
Uses of dry ice in the real world? What is sublimation?

Background information for teacher: Dry ice is carbon dioxide (CO2) in its solid form. At temperatures above -56.4 °C (-69.5 °F), dry ice changes directly from a solid to a gas, without ever being a liquid. This process is called sublimation. When dry ice is put in water it accelerates the sublimation process, creating clouds of fog. In this case fog fills up the bubble until the pressure becomes too much and the bubble explodes, spilling fog over the edge of the bowl. 
Sometimes dry ice is used in theater productions and performances to create a dense foggy effect. It is also used to preserve food or freeze lab samples.  Dry ice is sometimes used when shipping things that need to be frozen because it doesn't produce melted water or liquid carbon dioxide when it warms up. This prevents liquid from leaking out of the shipping boxes.  
Note: Stem connection when you discuss how dry ice is used in industry. 
Here are some ideas for having students write up the project in their interactive notebook.  Foldable graphic organizers are available in my store.  Foldable Graphic Organizer Template Pack



You may like a new lesson I wrote for 5th grade integrating math, science and reading! click here
Drops of Water on a Penny Lesson






Pull out and sliding folds can be found at this link Templates for Pull-Out Foldable Graphic Organizer


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If you are interested in some printable templates for foldables...see my super pack with over 70 templates for all kinds of folds that can be used in any subject! Click here: Editable Folds and Flaps for Interactive Notebooks!



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