Kids will have fun learning aboutwedges and screwsin thisSimple Machineslesson.
Simple machines have few or no moving parts and are used to change motion for get a job done.
What is a wedge?
We made one with a pointed front (wedge) and those with flat nose.
We discovered that the pointed nose (a wedge) made it go quicker.
The point of a pencil is also a wedge.
A screw is an inclined plane wrapped around a rod.
They include: screws, milk lids, oil drills, and more.
Simple Machine Screw Activity
A screw is just a nail with an inclined plane wrapped around it.
So when you wrap the shorter paper around the pencil it made fewer bumps up to the top.
It was quicker to screw in, but took more effort or force to screw into the wood.
We observed:
Then we screwed a screw through a two stacked up cardboard boxes.
Then we put a nail through the plates.
I asked the kids what they thought would hold better?