When you drink fizzy pop, the fizziness comes from bubbles of a gas called carbon dioxide.
Carbon dioxide becomes acidic when it’s dissolved. When the acid hits your mouth, your nerves send messages to your brain triggering heat and pain receptors.
Scientists aren’t sure why the acid in fizzy pop feels good but whatever the reason, you can enjoy drinking CO2 with this fizzy soup!
To make fizzy soup, you will need:
- A bowl
- Dried apricots, cranberries, and rasins
- Lemonade (try our recipe!)
What’s going to happen? The pieces of fruit will wiggle, float to the top and then sink back down again. They’ll repeat their performance for hours!
How to make Science Soup
- Cut the dried apricots with scissors into raisin size pieces.
- Combine the apricots, cranberries, and raisins into a bowl.
- Pour the fizzy lemonade over the fruit!
Dried fruit is more dense than fizzy pop so pieces of fruit sink to the bottom of the bowl of soda.
When bubbles of carbon dioxide bump into the rough surface of the dried fruit, the get trapped.
Eventually enough gas gets trapped beneath the dried fruit to lift it to the surface. At the top, the air escapes and the fruit sinks.
This cycle continues into almost all of the CO2 has escaped and the soda is flat. By then your fizzy pop will be infused with the flavours of the fruit!
To find out more about liquids and density, you should listen to Kareena’s Chemistry!
In this episode, chemistry superhero K-Mistry tells us about different liquids and their thickness…
Here’s a bonus idea: Why not play some funky tunes as you watch the dancing raisins?
You can see them bust their moves as you dance with them!
Fun Kids Daily Summer Challenge!
We're sharing something to do every day during the summer holidays! From going outdoors and trying fun games to learning new stuff and competing with friends!