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HANDS ON
Fruits and Flowers

Dissect a flower

Compare the parts of a flower with the parts of a fruit byt dissecting a lily and an apple. Your students may be surprised to see how similar they are. They'll have a whole new understanding of fruit.
Materials
A large mature lily (or similar flower)
A large ripe apple
Toothpicks
Knife (to be used by an adult helper)
Black paper
White paper
Magnifying glass

Procedure
Begin with the flower. Locate the parts of the flower: petals, sepals, pistil, stamen, and ovary.

Like this one

Carefully remove the sepals and place them on the white paper.
Remove the petals and place them on the white paper.
Remove the stamen and lightly wipe the tip of the stamen against the black paper. Some of the powdery pollen should stick to the paper.
Rub the stamen against the sticky pistil. Some of the pollen should stick to the pistil.
Use the edge of a toothpick to slice open the ovary.
Examine all of the parts with the magnifying lens.

Cross-sections

Have an adult helper slice the apples in half from top to bottom. Each student or group should have a cross section.
Consider the apple. Locate the stem. Consider where the stem was attached to the tree. Look at the other end of the apple and you should see the sepals. Compare the structure of the apple to the lily.

Conclusions
The fruit of the apple that we eat is actually the ovary. It protects the seeds inside.

Extension Ideas
Consider other flowers and fruits. Which are similar? Which are different?


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