Science Week

Before mid term we had a science fair in the school hall. Each class had a different experiment to display and everyone had a great time. Our experiment was about triangles. It was called Amazing Triangles. We built a house of cards and it was very hard. We also built marshmallow structures with marshmallows and cocktail sticks. We were looking at how triangles are good for building. They are also good  for helping the structure stand.
We also did an experiment with baking powder, water, vinegar, lemon juice and a mix of vinegar and water to see if we could clean the tables in our class with stuff from our kitchen. The mixture of vinegar, baking powder and water cleaned the tables better than all the other ones and the lemon juice did not clean the tables very well. Ms O'Connor came down to our classroom to do an experiment with us. We were testing if these foods had starch like apples, biscuits and bread rolls.We used iodine to test the food. It turned blue or black when it had starch and it stayed red or brown when it had no starch in it.
WE HAD A GREAT WEEK!!