Today, we had a very exciting interruption to our day!
Mrs Trussler, the Secondary School Science teacher, told us that a delivery of dry ice had arrived at school. How exciting! We raced upstairs to the Science lab for a wonderful lesson on states of matter. We watched in awe as the dry ice behaved differently in the air, on the table, in water and in a soap mixture.
We learned that dry ice is actually solid carbon dioxide, which has frozen at a temperature of -78 degrees Celsius. We learned about solids, liquids and gases. We even watched the process of sublimination right before our eyes. We loved popping bubbles of carbon dioxide!
Dry ice makes spooky smoke at Halloweeen….but today, it was Super Science for Grade 4!
Thank you, Mrs Trussler, for adding so much to our learning.
Halloween Science on PhotoPeach
What did you learn about states of matter?
What other substances do you know that change from a solid to a liquid to a gas?
Can you explain sublimination?