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Fizzy Bath Bombs

Time

Age

Level

Materials

1/6 cup citric acid powder (baking section in supermarket)

1/2 cup bicarbonate of soda (baking soda)

1 teaspoon Sunflower oil or other light oil

Few drops food colouring

5 drops essential oil (e.g lavender, chamomile etc)

Silicon ice cube molds or sand molds

Sieve and 2 bowls

Starting materials

Method

Sieve the baking soda and the citric acid together into a bowl and mix well.

Sieve the dry ingredients

Add the oils and the food colouring together in a second bowl.

Wet ingredients in a separate bowl

Pour the oils into the bowl with the baking soda/ citric acid mix. Mix with your fingers very quickly. If you dont mix quickly the fizzing reaction may set off.

Mix quickly with your fingers

The mixture should be powdery but start to clump together if you squeeze it. Add a tiny bit more oil if needed.

The mixture should by powdery but clump when squeezed

Press the mixture into the ice cube molds. It's important that it is very hard packed to stop the finished bath bomb crumbling apart, so put in a spoonful at a time pressing it in very firmly with your fingers before adding another spoonful.

Ready to be pressed down firmly

We made hearts, stars and fish using these cheap ice cube trays from IKEA

Leave to dry for at least 24 hours

Remove the bath bombs carefully from the molds

Fun fizzy fish

Pretty hearts

Categories

These fizzy bath bombs are fun to make and even more fun to use. Watch them spin and bubble as you drop them into a hot bath.: 20 minutes plus at least 24 hours drying time.: 5-10's, Over 10's: MediumThese quantities make around 9 ice cube sized bath bombsMake sure all your equipment is totally dry as any moisture will start the ingredients fizzing.Add one to your bath and enjoy the fizz!In humid or damp conditions, the finished bath bombs will quickly pick up moisture from the air and start to develop a bubbly surface. It's best to keep them in a dry airtight container and plan to use them within a few days.