This week we have tried to find out if baked beans cause wind. We mashed up bananas and weetabix with water and put it into two bowls. We added a can of beans to one bowl. Both bowls were covered with cling film and left in the classroom for 4 days. We hoped that it would be really obvious if beans make wind. We thought the cling film would stretch upwards and look like a balloon.
Banana and weetabix mashed up with water and left for 4 days.
The same mixture with baked beans added. Also left for 4 days.
Both bowls look similar, but if you look closely there is some evidence that beans make wind because there are some bubbles of gas rising to the surface.
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