Tuesday, 14 July 2009

Kitchen chemistry experiment

Turtle had a science project for school which required demonstrating a reaction using kitchen "chemicals". We figured there'd be quite a few vinegar/bicarb soda volcanoes, so we thought we'd try something different. We settled on making a "Acid or Base?" demonstration:

First we needed a reliable indicator - the water from boiling red cabbage is perfect:

Our test substances:

Vinegar turned the indicator pink=acid Bicarb soda: blue/green = base

I, at least, was happy to see that our washing up liquid was neutral... must be better for my hands :)

lemon - no surprises there.... beautiful, pink colour.
Turtle documented the experiment, took photos and later repeated it in front of his class.

No comments:

Post a Comment

Please leave a message after the beep.....