STEM Activities Using Cranberries

Cranberries are such fun little fruits, and kids might not have exposure to them as actual fruits (unless you live where they grow). They’re also fun to use in STEM activities this time of year, so let’s check out some cranberry STEM ideas.

Little kids and those who haven’t been exposed to cranberries as berries before will enjoy exploring them in a cranberry sensory bin. Fun Early Learning has ideas for how to set up a sensory bin using cranberries and what else to add.

Build structures with cranberries and toothpicks like in this idea from Artful Parent (the post shows grapes but there’s a link on the same post that mentions doing it with cranberries, but it links to this same URL so you’ll just have to imagine what it looks like.

Lots of classic STEM experiments can be done with cranberries. For example, the dancing raisins experiment can become a dancing cranberry experiment, like is shown at Little Bins for Little Hands. They used craisins (dried cranberries) for this experiment, but you can also try it with regular cranberries and see if that works.

Little Bins for Little Hands has a nice collection of cranberry activities including a more detailed activity building with cranberries and toothpicks, sink or float, sensory bin and more.

Did you know you can make invisible ink using cranberry juice and baking soda? Get the recipe from Kid Minds. They made their own juice from fresh cranberries; I’m not sure if purchased cranberry juice would be acidic enough for this to work. But you could try both and compare and make it a full science experiment where you talk about why it does or doesn’t work.

While you’re making your own cranberry juice you can also use it to make cranberry scented playdough. This idea is also from Kid Minds and is another fun way to play with cranberries.

Growing Up Ladybug and How to Become a Butterfly are both by Stepanka Sekaninova and illustrated by Linh Dao, and they came out at the same time and are on similar themes, so let’s look at them together.

Growing Up Ladybug is narrated by Mariella, a seven-spot ladybug. She talks about the parts of a ladybug, where they live, different kinds of ladybugs, why humans love them, their defenses against predators and the life cycle of a ladybug.

The drawings are cute if not always scientifically accurate, it’s not in such a way that’s likely to confuse kids (who probably already know that ladybug mamas don’t push their larval babies around in strollers, for instance.

It’s a good general description of the life cycle of a lady bug and why we like having them around.

About the book: 32 pages, hardcover. Published 2026 by Albatross Media. Suggested retail price $16.95.

Similarly, How to Become a Butterfly covers the life cycle of a butterfly, starting with caterpillars eating burning nettle leaves. (Here Amanda is the narrator.) The book talks about a few of the more than 18,000 daytime butterflies in the world as well as other creatures that live in the meadow (there’s that ladybug again, along with crickets, bees and other bugs).

It also covers some of the enemies of caterpillars like wasps and spiders, and the defenses that caterpillars use to try to prevent being eaten. It illustrates how caterpillars grow and change as they molt and prepare to pupate, and what a caterpillar looks like before and while it is forming its chrysalis. And while the book uses the word metamorphasis it doesn’t really talk about what happens between the caterpillar forming a chrysalis and the butterfly hatching.

This butterfly is a peacock butterfly, and once it hatches the book covers the parts of a butterfly and the life cycle. It also talks about nocturnal moths (though it says nocturnal butterflies are “usually called moths” when moths are actually a different species) and what butterflies do at night.

I’m maybe a little hard on this book because my daughter is a butterfly expert from way back, but it is still cute and good for the very basic basics of the butterfly life cycle.

Both books would be fun additions to your bookshelf for younger kids starting to learn about different animals or who have an interest in insects.

About the book: 32 pages, hardcover. Published 2026 by Albatross Media. Suggested retail price $16.95.

Have you read?

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