Levers

This week we learned about levers. On our way to the backyard I grabbed an old shelf and an empty 2 liter soda pop bottle with the lid on.

I set the board (lever) on the bottle (fulcrum) and placed 4 bricks (load) on one end. Then we were easily able to move the fulcrum closer and farther from the load to see what made the load easier and harder to lift.