We went on a states of matter hunt all around the school. We found plenty of solids a few liquids, but not many gases. This made us more curious about gases. We wrote to Dr. Jeremiah a HS science teacher and she invited us to the science lab to meet the DP chemistry students to find out more about gases. We asked them questions about gases. When asked what we could put inside a balloon we came up with many different ideas. We tried lots of them out...water, air, beans, pompoms and rocks. After each one we decided if the change to the balloon was reversible or irreversible. It was reversible as the things could be taken out again...until the balloon popped! Then water couldn’t be put back in and the balloon could no longer hold air! We also wanted to know what would happen if we put water balloons in the freezer so tried that too. We explored ice cubes by feeling them melt, observing them closely through magnifying glasses and writing and drawing about the changes we saw. We discussed the changed and decided it was reversible as when the solid ice had melted we could put the water back into the trays to re-freeze it again.
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May 2021
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