We’ve been having more Elf themed Christmas science fun this week with this Fizzy Elf Laboratory.
Fizzy Elf Laboratory
What you’ll need:
Test tube holder
Baking Soda ( Bicarbonate of Soda )
Vinegar
Red and Green food colouring
Glitter – optional
Funnel
Safety note:
Children should wear safety goggles to prevent vinegar getting in little eyes.
Instructions
Use a funnel to neatly add a teaspoon of baking soda to each test tube.
Add a few drops of food colouring and some glitter.
Get ready for the fizz
Add a few drops of vinegar to each test tube and watch it fizz!!
Why does this happen?
Vinegar (an acid) and bicarbonate of soda ( an alkali ) react together to neutralise each other. This reaction releases carbon dioxide, a gas, which is the bubbles you see, this mixed with the food colouring makes a lovely foam!
Extension tasks
What could you add to make the foam thicker?
What happens if you use more or less baking soda?
Why does this happen?
FREE Printable
Download our free experiment printable here. 
More Elf Experiments
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[…] Kids of all ages will have fun with this Fizzy Elf Lab. […]