Science – Sound – Sound requires a medium – English

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…

Robot vacuum cleaner review | Unboxing with Artkala+ Giveaway | ft. Gearbest.com

Robot vacuum cleaner review | Unboxing with Artkala+ Giveaway | ft. Gearbest.com

Robot vacuum cleaner review | Unboxing with Artkala+ Giveaway |ft. gearbest Buy ILIFE V7 Super Mute Sweeping Robot-https://goo.gl/RVaQg3 Hot sale electronics on Gearbest and big coupon Consumer Electronics:https://goo.gl/ygwqTt Coupon: GBCE (13% OFF) Computer & Networking: https://goo.gl/CBzCkv Coupon: GBCNA (14% OFF) Automobiles & Motorcycle: https://goo.gl/9Ev8Wc Coupon: CAR18OFF (18% OFF) Remote Control Toys: https://goo.gl/yKrGgM Coupon:RC18OFF (18% OFF)…