To keep young children occupied on a road trip or walk, make a nature journal.
Brown paper bag
Pictures of drawings of things you would see on a walk or from a car
Title Page to glue on the front
Fold bag in half
In the center put pages with either pictures or drawings with check boxes beside each*
Make three holes for binding
Tie ribbon through the holes
For driving: Red car, crane, tree, road sign etc.
For scavenger hunt: Leaf, ladybug, bird, butterfly
(you get the idea)