Fizz Inflator and Exploding Lunch Box Experiments

As part of our topic about CHANGE during science we are learning about chemical changes by carrying out chemical reactions. We learnt that a chemical change occurs when 2 substances are mixed together to form something new.  We also learnt there are 4 main clues that a chemical change has occurred.

1.    There is a formation of gas which can be seen by a fizzing or bubbling

2.    The reaction will cause heat, light or odour to be emitted

3.    A colour change is produced

4.    A solid is formed during the change

This week we conducted the fizz inflator and exploding lunch bag experiments.

 These experiments showed chemical change because the baking soda and the vinegar create and ACID-BASE reaction and the two chemicals work together to create a gas, (carbon dioxide) Gasses need a lot of room to spread out and the carbon dioxide starts to fill the bottle, and then moves into the balloon to inflate it.