If you’re looking for a Valentine’s Day activity that’s fun, easy, and doesn’t involve sitting your child in front of a screen, these fizzy love potions are a lovely place to start. This simple valentine STEM activity uses everyday ingredients and takes just a few minutes to set up, but the fizzing, bubbling magic keeps little ones busy far longer than you might expect. It’s perfect for curious toddlers and preschoolers who love pouring, mixing, and watching things happen. Find more Valentines STEM activities here.
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Why you’ll love this fizzy love potions Valentine STEM activity
This fizzy love potions activity is one of those ideas that looks impressive but is actually very easy to set up, which is exactly what most of us need!
It uses simple ingredients you probably already have at home, takes just a few minutes to prepare, and keeps little hands busy while they mix, pour, and watch the magic happen.
There’s no right or wrong way to do it. Children can experiment at their own pace, making it perfect for toddlers and preschoolers who love exploring without pressure. It can also be enjoyed by slightly older children too.
It’s also a lovely way to introduce early STEM learning without worksheets or screens. Kids are learning through play, and you get to enjoy watching their reactions as the potions fizz and bubble.
Best of all, it feels special and themed for Valentine’s Day but it doesn’t need complicated crafts or lots of mess. There will be a little mess but a tray helps contain it!
Supplies you need to set up fizzy love potions
- Small clear cups, jars, or potion bottles
- Baking soda
- Vinegar
- Pink or red food coloring
- Glitter
- Heart confetti
Valentine STEM activity
Materials
- Baking soda
- Vinegar
- Pink or red food coloring
- Glitter
- Heart confetti
Tools
- Small clear cups, jam jars, or potion bottles
Instructions
- Start by preparing your potion bottles. Set up you jars or potion bottles. I stood mine on a tray to make cleaning up easier. Add a few spoonfuls of baking soda to the bottles or jars. This will be the base for the fizzy reaction.
- Next add a few drops of pink or red food coloring to give the potion a Valentine’s touch
- Sprinkle in some glitter and heart confetti for extra shimmer and charm.
- next we're going to create the fizz. Slowly pour vinegar into the bottle and watch as the potion bubbles and fizzes. The reaction between the baking soda and vinegar creates a fun, frothy explosion that looks straight out of a love spell.
- Try adding more vinegar or baking soda to see how the reaction changes. Kids can experiment with different colors or amounts of glitter for endless fun.
The simple science behind the fizz
Preschool children do not need to understand why the fizz happens but you might like to know or you may want to explain it to older children who will also enjoy this activity.
When baking soda and vinegar mix together, they create a fizzy reaction. The bubbles you see are carbon dioxide gas escaping, which makes the potion fizz up and look magical.
This is a fun way for children to see that mixing different things together can cause changes.
Benefits of this fizzy love potions experiment
There are lots of learning opportunities in this STEM activity and none of them involve you having to explain the science behind the fizz to them! Here’s how your child will be learning through this activity without even noticing!
Encourages scientific curiosity – This simple STEM activity for preschooler introduces kids to simple chemical reactions in a hands-on and exciting way.
Boosts creativity – This activity lets children design their own “love potions” with color, sparkle, and imagination. You could give them a few different options to choose from.
Develops fine motor skills – Scooping, pouring, and mixing strengthen hand coordination.
Promotes sensory exploration – The fizzing sound, bubbly texture, and bright colors will engage multiple senses for your child.
Sparks wonder and play – This Valentines STEM activitylearning feel magical while fostering a love of science through play.
Supervision reminder
Always supervise young children during this activity to make sure they don’t start drinking the potions!
More Easy Valentine Activities for Kids
Find all our Valentine’s Day activities for kids here.
Find loads of ideas for super cute valentines cards for kids to make here.
Get my free valentines day activity printable here.
Find more valentine printable for kids here.
Find the best picture books about love here.