Plenty of things for Kids to do! 
Before the Fair: Check out the Junior Division section on how to win money and prizes. 
At the Fair: Some of the highlights are:

The Townsend Amusements Midway has rides all weekend starting Thursday at 4:00pm and there'll be some crashing and banging at the Demolition Derby Thursday at 7:00pm

Exotic Critter Tales has exotic animal demonstrations throughout the day on Friday, Saturday & Sunday.
Friday at 12 noon "Sunflower" the clown is in the arena.
Friday at 1:30 is Kids' Ice Cream Contest in the arena (sponsored by North Niagara Dairy Farmers).
Lots of Animal Shows to watch on Friday:
10:30 4-H & Youth Horse Show - ball diamond
         4-H Miniature Horse Show - ball diamond
11:30 4-H Goat Show - big tent
12:00 Goat Show - big tent
  1:00 Guernsey Show - big tent
  1:304-H Rabbit Judging - outside Ag-Awareness Tent
  3:00 4-H Sheep Show - big tent
  7:00 4-H Dairy Show - big tent
         4-H Beef Show - outside ring

Saturday has Animal Shows as well:
  9:30 English Horse Show - field
10:00 Miniature Horse Show - ball diamond
12:00 Junior Holstein Show - big tent
  1:30 Heavy Horse Pull - grandstand track

Saturday at 1:30 "The Stylamanders" are on the arena stage and at 2:00 the Baby Show is hosted by "The Stylamanders"- on the arena stage.  The Diaper Derby follows the Baby Show.
At 3:30 the Pet Show is on the arena stage and at 5:30 get ready for Smithville's Next Star (under 16)  on the arena stage.  On the Grandstand Track at 7pm there will be crashing and banging at the  Demo Derby for 6 and 8 cylinder cars and VANS!!.

Sunday there are more Animal Shows:
11:00 Heavy Horse Show - grandstand track
11:30 Light Horse Show - grandstand track
12:30 Sheep Show - big tent
 1:00 Beef Show - Outside Ring