Year Four enterprise – Wriggly Worms

Today for Class 4’s enterprise it was Class 5’s chance to come and take part in an experiment. The experiment was to see if they could make the worms wriggle and they succeeded.

First they put the worms into bicarbonate of soda and water for 30 minutes.

Next they got a glass half full of vinegar and placed the worms inside.

The mixture started to fizz and sure enough the worms began wriggling.

This was so much fun and we found out that mixing bicarbonate of soda with acidic vinegar creates bubbles of carbon dioxide gas. As the soda solution has soaked into the gummy worm, tiny bubbles form on its surface when you drop it into vinegar. The bubbles grow big enough to lift the worm.

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