Gears

Gears are wheels with teeth thatfit together. When one gear is

turned the other one turns, too.The smaller wheel turns more

quickly but with less force, whilethe bigger one turns more slowly

with more force.

Wedge

A wedge as a tool is used to pushtwo things apart such as the

blade of a sword and knife doeswhen it cuts wood. A wedge canalso be used to lift an object or

hold an object in place.

Screw

A screw is a special kind ofinclined plane. It's an inclinedplane wrapped around a pole.

Screws can be used to lift thingsor to hold them together, like jar

lids, or of course, screws.

Inclined Plane

Inclined planes connect lowerlevels to higher levels and allowyou to use less force to move an

object. Some examples ofinclined planes are ramps and

slides.

Lever

A lever is a long, sturdy bodythat rests on a support called a

fulcrum. The fulcrum is theplace where the lever pivots. Itmakes it easier to lift up heavyobjects. Levers can also be used

to weigh things.

Wheel and Axle

The wheel is the round circleand the axle is the rod that goesright through the very center ofthe wheel to help it move and

stay in place. It's a simplemachine that helps make work

easier.

Pulley

Pulleys are made by looping arope over one or more wheels.

They are often used to liftheavy objects: pulling down onone end of the rope creates anupward pull at the other end.

Carabiner

A carabiner is a metal loop,which can be opened on one

side. This side is called a gate.The other side is called spine.They can be used to secure

looped ropes.

Mechanism Simple Machine Simple Machine Simple Machine

Simple Machine Simple Machine Simple Machine Shackle

Lock and Key

A lock is a mechanical device forkeeping others from opening adoor, window, or a safe. Can beopened by turning its matching

key in the lock.

Snap Shackle

A type of fastener that can beused with just one hand. It can be

unfastened under load. Not assecure as other types offasteners, but good for

temporary needs. Can be quicklyattached to ropes or harnesses.

Crank

A crank is an arm attached to ashaft that can be used to rotatethings like gears. Bike pedals

are an example of cranks.

Inclined Plane

A strong thick cord of strands(as of fiber or wire) twisted orbraided together. Can be usedto tie together, pull, drag, or

secure objects.

Connecting Rod

A connecting rod is exactly whatit sounds like. It is a rod that

connects two moving parts in amechanism

Crank and Slider

This mechanism is made ofthree important parts: The crank

which is the rotating disc, theslider which slides inside thetube and the connecting rod

which joins the parts together,like the wheels of a train.

Rollers

A roller is a friction-reducingmachine that allows you to

move a heavy object along theground.

Wooden Plank

This long wooden plank can beused with any machine,

mechanism, or component tomake something new. It is 8 feetlong, 4 inches wide, and 2 inches

deep.

Mechanism Shackle Mechanism Component

Component Mechanism Mechanism Component