Dissolving Candy Hearts Experiment

Welcome back for another STEM Saturday! This week we have a special series featuring one of the most important parts of Valentine’s Day.. Hearts! Today we are sharing our classic dissolving candy hearts experiment that is very similar to our dissolving pumpkins, candy canes and peeps experiments. Since I believe in child led experiments, I try to let my kids choose what they want to do and what they are interested in. It seems that every time we have a new material, the first thing the kids want to do is see how it relates to liquids. So, that is what we did with our candy hearts!

Dissolving Candy Hearts Simple Valentines Day Science

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Dissolving Candy Hearts Simple Science Experiment

You are going to love this experiment as much as we did! This simple experiment seriously took 2 minutes to set up and was super fun.

Setting up the Experiment

Dissolving Candy Hearts Experiment


Lemon Juice
Candy Hearts

Timer/ Stopwatch (we love using our phone)

Set Up:

Fill 4 cups up with the same amount of liquid in each glass.
Place the candy bowls in a bowl near the glasses for easy access.

Conducting the Dissolving Candy Hearts Experiment

What happens to Candy Hearts in Different Liquids

As with all of our experiments we began with observations and predictions. Because we have done this several times the boys (7 and 9) had quite a bit of background knowledge built up. For this experiment, both boys chose to measure the candy hearts before they started and they both drew the jars of liquid.

Both boys had very similar predictions. With the addition of the lemon juice, the boys were certain the heart in the lemon would dissolve the fastest due to the acidity and the heart in the oil would not change at all.

Dissolving Candy Hearts

After the boys were done making their observations, drawing, measurements and predictions, we ere ready to get started. The boys put the candy canes in the jars and started the timer. What happened next surprised us all.

Making Observations and Noticing

What liquids do Candy Hearts dissolve in

After the candy canes dissolved so quickly, the boys expected this change to be just as fast. However, it was a much slower process. At each 5 minute interval they used a skewer to check the hardness of the candies, only to find that they were not absorbing the liquids.

The surprising observation was how the candy in the oil changed. Based on their other experiments, this was not what they found, so now they had a ton of questions.

Dissolving Candy Hearts Experimenting with Liquids

Pretty cool, huh?

There are so many variation to this experiment. The boys are already talking about changing up the liquids, testing what happens when you shake the containers, changing the temperatures, and changing the candies.

I love how they are always questioning and looking for new ways to try things out.

Do you have a favorite Valentine’s Day Science Experiment? I would love to know! Connect with me on FacebookTwitterGoogle+PinterestInstagram or subscribe by email. I can’t wait to hear your ideas.


STEM Activities for kids

Every Saturday we will get so many wonderful ideas linked up from around the web that we have decided we want to feature some of these great ideas. That’s why every Saturday, I will pick from the posts linked up and feature my absolute favorites. This might be a hard choice to make, luckily you can always head over to last week’s post and check out more great science resources!

This Week’s Feature: Valentine’s Day Science




Candy Heart Catapult: Measuring Distance from Stir the Wonder

Flying Cupids | Static Electricity for Valentine’s Day from The Science Kiddo

Lego Candy Box for Candy Hearts Building Challenge from Little Bins for Little Hands

Scented Hearts Experiment from Suzy Homeschooler

Fizzy Heart Valentine Science from FSPDT

Follow Science Experiments for Kids on Pinterest.


Discover how to get siblings to get along even when all they do is annoy each other with the Sibling “Get Along” Poster Pack!

4 thoughts on “Dissolving Candy Hearts Experiment”

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  3. Pingback: 7 Valentine's Day Activities for You and Your Little Ones - Behavioral Health WorksBehavioral Health Works

  4. Pingback: A Common Core Valentine’s Day – Kendra Terranella

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