Professor Sjaarda, a scientist from Queen’s University paid a special visit to our class. We revisited our prior knowledge of States of Matter while engaging in some awesome experiments. As Professor Sjaarda taught us about sublimation, we got to observe the process in action. We also got to see some really neat chemical reactions when different solids, liquids, and gases mix.
Did you know that dry ice, dish soap, and water can make really huge bubbles? Did you also know that you should never touch dry ice? It is so cold that you will have frostbite in seconds if touched with bare hands! Lastly, did you know that unlike most solids, ice is floats on water? In God’s perfect plan for creation, He created ice to weigh less then water in order to protect all the creatures of the sea. If God allowed the ice to sink, the waters would freeze and all sea life would die. “In His hand are the depths of the earth, and the mountain peaks belong to Him. The sea is His, for He made it, and His hands formed the dry land.” Psalm 95: 4-5. Thank you, Professor Sjaarda for sharing your knowledge with us.