Activity (Hands-On)Grades 3 - 5
The Claw: Gear Ratios & Power Using LEGO Cranes
Materials List
Each group needs:
- The Claw Worksheet (PDF), one per student
To share with the entire class:
- LEGO parts to make three cranes with differing gear ratios (See Figures 1 and 2)
- 9 objects with varying masses (for the cranes to lift)
- string
- 3 hooks