By Anne Burgess, used under Creative Commons license
One way to fine out is to collect insect tracks. You need some black construction paper, fine chalk dust, and a few different insects. Spread the chalk dust on the sheet of paper. Then place an insect down and watch what sort of tracks it leaves.
Ant tracks tend to be complicated patterns, whereas beetles leave a series of wavy parallel lines behind. But what about millipedes? Crickets?
Take photos of your tracks and label them to create a field guide to bug tracks in your back yard. Then, after the next rain, head outside to see who has left their footprints in the mud.
Believe it or not, there is a field guide to insect tracks & signs! Check out more STEM Friday resources here.