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Model School Primary School, Northland Rd, County Londonderry

Science Week 3rd class Day 5

15th Nov 2019

We worked with bases and acids today. Pupils combined vinegar, food colouring and baking soda to create a chemical reaction. They discussed physical changes and how they can be reversed but that you can't reverse a chemical change. We also created co2 by placing a balloon at the top of  bottle that emptied baking soda into the vinegar creating the gas. The balloon trapped the gas. We used this also as part of climate change discussion.