Description
Wooden wheel-and-axle simple-machine model on a 9
Plastic-bodied wave apparatus with eccentric discs that drive metal rods up and down as the handle turns
secured on a plastic-ended metal rack with a carrying handle for physics force and acceleration experiments
Solid metal 1kg rollers at 8cm wide by 4
Farmer's Potometer Material_LDPE Wooden wheel-and-axle simple-machine model onFarmer's design suspends a plant cutting in water with a graduated reservoir for measuring transpiration uptake in plant physiology coursework.
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