The students were given the following materials to complete this investigation
a ruler
a large foldback clip with the steel pin removed - this is the fulcrum
several objects -small blocks, erasers, sharpeners etc easily sourced around the classroom. Plus a few heavier objects for investigation 3.
Investigation 1 - First class lever
The students set up their equipment to balance two objects
Investigation 2 - Second class lever
The students set up their equipment with the fulcrum at one end of the ruler and then balance two objects.
Investigation 3 - Third class lever
The students set up their equipment to lift a load.
In their Science Journal the students choose two of the investigation and draw a diagram including these labels - fulcrum, object and ruler.
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