Here is one apple flower, cut down the middle.

An apple flower cut down the middle: petals, little stalks with yellow knobs, one taller stalk, and a green cup at the bottom.

The little stalks end in yellow knobs, and the yellow dust on them is called pollen.

In the very middle is one taller stalk with a sticky top.

At the bottom of the flower is a green cup.

The tiny parts deep inside, in the green cup, are where the seeds will form.

The same flower with labels: petal, pollen, the sticky top, and where the seeds form.

A plant's flower is where its seeds are made.