Today, I’m sharing a simple version of STEM activities for the youngest members of your household. This flower dissection lesson plan is perfect for preschoolers and kindergarteners.
The best part?
It only requires flowers (and a magnifying glass, if you happen to have one handy!), so it qualifies as a no-prep STEM activity. It’s the perfect addition to your spring STEM activities!

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Parts of a Flower Dissection Activity
This simple science activity encourages scientific exploration during flower dissection. This activity can be done with all ages, but preschoolers and kindergarten kids will have the most fun with this science activity.
Try this in a science center, or set it up for one of your spring science lessons.
Supplies
- Magnifying glass (affiliate)
- Flowers (if you have more than one kind, that is even better)
- Parts of a flower diagram (we used this one)

Before starting our flower dissection activity, Bo and I examined the diagram and talked about the parts of a flower.
I didn’t go into as much detail as the diagram with her, as she wouldn’t have understood all of the vocabulary. I stuck to fairly simple names for the flower parts, like pollen, stems, petals, etc.
I instructed Bo to take apart the flower (gently) and examine the pieces one at a time. We then compared how our flower was different from the picture.
The biggest difference between our flower and the example diagram was that our flower didn’t have filaments or any visible pollen.
Bo also found out that by rubbing the flowers across the base of the box, she could use the petals as paint. I wasn’t as thrilled with this discovery as she was.
More Ways to Learn with Flowers

Flower Coloring Mixing Activity for Preschoolers
Magnifying Glass Discovery Tray