Fruit Prints
Cut apples or pears in half, dip cut side in paint, and make prints.

Mystery Paint
Have the children paint using lemon juice.  Let the painting dry overnight. It will be invisible.  Place each child’s paper under several layers of newsprint.   Lightly iron over the paper with an iron set on high (no steam) until the artwork appears.  Ask children to guess why the pictures appeared.

Counting/sorting Fruit
Make a variety of fruit shapes, some small, middle sized and big, different colours, types etc.  Leave the basket of fruit shapes out for the children to explore, count and sort on their own.

Fingerplay (Poem with actions)
Bananas are my favorite fruit (make fist as if holding banana)
I eat one every day (hold up one finger)
I always take one with me (act as if putting one in pocket)
When I go out to play (wave goodbye)
It gives me lots of energy (make muscle)
To jump around and run (move arms as if running)
Bananas are my favorite fruit (rub tummy)
To me they’re so much fun! (point to self and smile)

Other Ideas

https://www.kidssoup.com/activity/fruits-and-vegetables-preschool-activities-lessons-and-games