Today Room 4 did Critic Acid- Acid and Baking Soda- Base, we had 2/4 cups for each table and we had to have 3 or 6 each of the paper and we had to put it in the cups and it changed colour and it was so cool, we had Sprite, Dish washer liquid and Water in each cup. I have in my group is Leuwina and Chris and it was only us 3 on the table.
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