Football Throw Stability STEM Activities

Set up a controlled experiment. Find an open outdoor space, pick a throwing line, and draw a data table with two columns: Type of Throw and Distance. Keep everything the same except your grip: same thrower, same football, and the same amount of force for each throw.

Before you start, make a prediction: you will throw the football three ways, with no spin, a wobbly spin, and a tight spiral. Which do you think will go the farthest, and why?

Throw 1, No spin. Hold the football toward the back of the ball along the underbelly, with no fingers on the laces. This makes it hard to create spin when you let go. Throw, then measure the distance and record it

Throw 2, Wobbly spin. Place your fingers toward the front or back of the laces, using a little bit of the laces but not a true spiral grip. Throw, watch how the ball moves through the air, then measure and record the distance.

Throw 3, Tight spiral. Place your fingers on the laces and roll your fingers off the ball as you let go to make it spin. Throw, then measure and record the distance. (Hold the ball a little toward the back and skip the first couple of laces. Find the grip that works for your hands.)

Compare your three distances. Observe: how did each football move through the air? Did it tip and turn, wobble, or fly straight? Which one went the farthest?

Scientists don’t stop after one try. Repeat all three throws for a second round to see how much your results change, then change only one variable at a time, like a different football size, to test
again.