Lesson plan

Simple machines using the weight of water

Use the weight of water to raise marbles, using simple machine mechanisms: a wheel and axle, a lever and a pulley.
Science content
Physics: Motion and Forces, Newton’s Laws, Gravity (K, 2, 6)
Physics: Simple and complex Machines (5)

Set up the three activities for students to rotate through.
It will be messy, so have lots of towels and a mop handy.

Gather to discuss challenges, ways they were worked around, and the forces in the simple machines.

Grades taught
Gr K
Gr 2
Gr 3
Gr 4
Gr 5