Abstract: A tear-open bag is made of non-tearable synthetic resin and comprises a front side and back side formed from a single web of synthetic resin. The sides of the web are heat sealed together to form an end-to-end seam in the bag. The ends of the bag are heat sealed together, thereby forming a completely moisture resistant heat-sealed bag. One end closure of the bag is provided with a tear-propagating slit which can be readily manipulated by an adult to tear off a corner of the bag and thereby form a pour spout for dispensing the contents of the bag in a controlled manner. The slit is not readily or easily used by a child to open the bag, thereby rendering the bag child-resistant.