Use a pencil and ruler to draw a large outline of Noah's ark on your foam board. Include a door and two or three windows.
Cut the ark out of the foam board using a sharp utility knife. Make your cuts slowly to prevent damaging the outline of your ark.
Place the ark on a pile of newspaper.
Paint the ark brown using tempera paint and paintbrushes.
Allow the ark to dry completely.
Add details to the foam board to give the illusion of an ark. Include paper cut-outs of different animals poking out of the windows and door. Use a dark brown marker to add details to make the ark look like it is made out of wooden planks. Paint blue waves at the bottom to show how the ark floated once the rain stopped.