Soaking gummy candy for two days can make it grow twice as long. As the gelatin molecules form bonds, cross-linking like a jungle gym, they trap water molecules between them.
To turn a gummy worm into a “gummy snake,” fill a flat dish with water and drop in a gummy worm (or several). Set aside a dry gummy worm for later comparison. Check back every few hours to see your gummy worm growing, since it can continue to absorb water for up to two days.
Once your gummy worm has grown to its full length, you can perform tests to see how much it grew.
- Use a ruler to measure the length of the giant gummy worm, then measure the dry gummy worm and compare.
- Weigh it and compare its weight with a dry gummy worm. Be gentle, because a water-engorged gummy worm becomes fragile and splits easily, like Jell-O. Try moving it by tipping most of the water out of the dish, laying down some plastic wrap, and sliding the gummy worm onto the plastic to weigh it. Then weigh a dry gummy worm and subtract it from the weight of the giant gummy worm. The remainder is the weight of all the water that was absorbed.
You can also try this activity with other gummy candies, like gummy bears, fruit snacks, or Life Savers Gummies. Check the ingredient labels to make sure that your experimental gummies do contain gelatin. Gummy candies without gelatin, like Swedish Fish, don’t absorb extra water.
put gumies in water and your gummies will grow
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