This week Grade One ran a Christmas post service for the Primary School. We sorted and delivered letters to all the classes. We did our final states of matter experiment - mixing vinegar and baking soda which produced a gas. This gas filled a balloon! Ms Berna came in to show us how to make snowflakes! We had a lot of fun learning how to create these impressive looking decorations. We had visit from Santa and enjoyed making oobleck! We are looking forward to moving in to our newly renovated classroom in block 5 in January.
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Naomi showed an a demonstration of dissolving a solid in liquid which creates a gas at the same time. The vitamin C tablet was fizzing and bubbling while dissolving. The change was irreversible because we couldn’t get the solid out of the liquid again after it had dissolved. Ian brought in an icepack which has gel inside. We had it out for an hour in the classroom and it barely melted so we thought gel must take a lot longer than water to melt. Imran brought in some pepper to explain about the density of different substances. He got us to put pepper on a plate of water and tough it with our fingers. Nothing happened. Next Imran got us to put soap on our finger and try again...this time the pepper dispersed to the edge of the plate!
Ms Berna came to visit our class this week to help us work on and develop our team work skills. We learned that some teams have a leader and some teams don’t - each person has an equally important role with no single person leading. We played two different games to reinforce these concepts.
This week we went deeper into our inquiry about gas by blowing bubbles after reading a book about how bubbles are formed and why they are always round. We also made soda water by using a soda stream to dissolve carbon dioxide gas in water. We made observations to see the changes in the soda water throughout the day. We had so many questions about gas, so we ask Dr Jeremiah if we could visit the science lab and sent her our questions. The high school students set up some demonstrations which show how to test for oxygen, carbon dioxide and hydrogen. Our favourite was the hydrogen test which made a pop sound!
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.
Imran made a 3D shape memory game for us to play together. We learned the names of some new and tricky 3D shapes by playing this game and had a lot of fun at the same time. Ian brought in a cube shaped toy car that moves and reacts to hand movements. Ian and Michael enjoyed trying to make it move in different directions around the carpet. Naomi made a game for the class to play. When you landed on a 3D shape you had to name it and build it using magnatiles.
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May 2021
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