• Canada
• Ontario
• Grades 1-8
• Grade 8
• Science
• Understanding Structures and Mechanisms, System in action

3.8 describe systems that have improved the productivity of various industries.

Katrollen

⋆

Hydraulische lift

⋆

Stoommachine

⋆

Hefboomprincipe

⋆

Tandwiel- en kettingoverbrenging

⋆

Kettingaandrijving

⋆