Q&A – P5 Science Home › Forums › Primary 5 › Q&A – P5 Science This topic contains 0 replies, has 1 voice, and was last updated by admin 3 years, 4 months ago. Viewing 1 post (of 1 total) Author Posts February 12, 2019 at 9:02 am #2504 adminKeymaster Can tell me why dogs hang out their tongues on hot days? This is my son SA1 examination question where many students can’t answer. Plse help. Thanks 0 Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.