We completed a 3-way rotation. In these photos, we are exploring sublimation (changing from a solid to a gas). We used dry ice to show this change in state through a number of experiments.
SAFETY
Did you know that dry ice is a solid and has a temperature of -78.5 degrees celsius? That is 78.5 degrees colder than frozen water (ice)!
It is so cold that whoever handles the dry ice has to wear gloves to protect their hands from the cold!
SAFETY
Did you know that dry ice is a solid and has a temperature of -78.5 degrees celsius? That is 78.5 degrees colder than frozen water (ice)!
It is so cold that whoever handles the dry ice has to wear gloves to protect their hands from the cold!
DETERGENT BUBBLE
Here we showed a build up of gas as the dry ice went through sublimation by created a detergent bubble over the bucket.
DRY ICE AND WARM WATER
Here, we added dry ice to water to show the release of a gas during sublimation.
BLOWING UP A BALLOON
In these photos, we compared a balloon which had been blown up by using our breath (left), and a balloon which had been blown up by the gas created using dry ice (right). The balloon on the right was much heavier so it hit the ground first when dropped. You can also see that the balloon on the left is see-through where as the one on the right is not.
EXPLORING THE RESULT OF DRY ICE, WARM WATER, AND DETERGENT
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| We then explored the result of mixing detergent, warm water and dry ice. It created a foam made up of lots of bubbles which turned into a gas when popped! STUDENT LEARNING We finished by creating a blog post showing our learning. Check out Sheales' learning here! |
