Forestry
Mining
Compound Machines over time
The power of Compound Machines
100
it is a yellow and green machine that cuts down trees
What is a feller buncher?
100
what is a machine that moves coal and lifts coal
What is a conveyor belt?
100
its a boat that people used to travel to different islands before they have powerful propellers
What is an canoe?
100
to lift, move, and sometimes load h
What is the power of compound machines?
200
in the day how did they cut down trees
What is an axe ,platforms ,and saws?
200
they are used to move carts that are full of coal,gold, and other rock that they found out of the minds in the past
What are animals used for?
200
its a machine that shoots out nails in to wood , and is replacing the hammer that is replacing the rock on a stick
What is a nail gun?
300
it has better grip in wet areas, moves faster up and down hills
What is the advantage for tracks in forestry?
300
dump trucks, machine power, conveyor belts, trains, ships
What is used to move coal?
300
something that cuts though the ground to harvest crops
What is a tractor?
400
its faster, easier to move, and able to make tighter turns
What is the advantage for wheels in forestry?
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