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Science – Sound – Sound requires a medium – English

This short animated science video in English is meant for upper primary class children (age 11-13 years). This video explains how sound travels – i.e. requires a medium to travel. It starts with a small animated video to show how sound cannot travel in vacuum. It then explains how sound can travel through liquids and […]

Chemical and Physical Changes

Chemical and physical changes Say hello to Mark and Molly. Each are enjoying a glass of water. Deciding to save some for later Molly puts her glass in the refrigerator but Mark puts his in the freezer. A short time later they go to get their drinks. Molly enjoys her cold liquid water but something […]