The mighty mathematics of the lever - Andy Peterson and Zack Patterson TED-Ed 4:46 9 years ago 1 183 409 Далее Скачать
What Are Simple Machines? | Types Of Simple Machines | The Dr Binocs Show | Peekaboo Kidz Peekaboo Kidz 5:42 2 years ago 877 562 Далее Скачать
What Makes Machines Move? | Science of Simple Machines | Finding Stuff Out | 9 Story Fun 9 Story Fun 2:04:36 22 hours ago 409 Далее Скачать
The 3 Classes of Levers || How we use levers in the world and our bodies || By: Kinesiology Kris KinesiologyKris 6:17 4 years ago 124 588 Далее Скачать
Types of Levers: Simple Machine (Grade 4 & 5 Science) | TutWay TutWay 11:00 5 years ago 197 226 Далее Скачать
Simple Machines for Kids | Learn all about the 6 simple machines! Learn Bright 7:02 5 years ago 1 623 971 Далее Скачать
The Simple Machines Song | Science Songs | Scratch Garden Scratch Garden 3:20 5 years ago 1 412 939 Далее Скачать
What is a Lever? - Simple Machines | Science for Kids | Educational Videos by Mocomi MocomiKids 1:08 12 years ago 391 214 Далее Скачать