Simple Machines 12/1
https://www.youtube.com/watch?v=UtfVZtuyuHU
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Rube Goldberg machine using all 6 simple machines:
https://www.youtube.com/watch?v=VunNpfdw68g
Dog feeder
https://www.youtube.com/watch?v=Y3zF5ulwCjo
Pulley system
https://www.youtube.com/watch?v=oGgCaFTcbHk
Catapult
https://www.youtube.com/watch?v=GffewJVigls
https://www.youtube.com/watch?v=UtfVZtuyuHU
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Rube Goldberg machine using all 6 simple machines:
https://www.youtube.com/watch?v=VunNpfdw68g
Dog feeder
https://www.youtube.com/watch?v=Y3zF5ulwCjo
Pulley system
https://www.youtube.com/watch?v=oGgCaFTcbHk
Catapult
https://www.youtube.com/watch?v=GffewJVigls
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