Wiggly Gummy Worms
You can find instructions in a variety of places, but this is a good resource: https://www.playdoughtoplato.com/kids-science-dancing-frankenworms/
What You Need:
3-6 Gummy Worms (some brands work better than others, but we haven't found the perfect brand yet)
Scissors or Paring Knife to cut gummy worms
3 Tablespoons Baking Soda
1 cup warm water
1-2 cups vinegar in a glass
Cut gummy worms lengthwise into 4 pieces. Mix baking soda into warm water and add the cut gummy worms. Let the worms soak - most instructions say 15-20 minutes, but longer (even overnight) tends to work better. Then fish out the worms and place them in a glass filled with vinegar. Watch the worms start to wiggle and maybe even rise to the top - it is an acid and base reaction just as exciting as any erupting volcano!
A short video is attached and I have a couple of photos to send to you shortly.