She used scissors to shear the sheep's wool for spinning into yarn.

Its wool becomes matted, dirty, and useless for spinning as it is hard to get completely clean. You should shear your sheep once a year, avoiding colder weather. If your sheep is a longwool, like a Lincoln or a Leicester you can shear it twice a year.

Hope this helps!

You buy shears and then go shear a sheep. After you have done that, up in Lumbridge castle there is a spinning wheel on the second floor. Use it with what you sheared from the sheep.

Shear Stress divided by the Angle of Shear is equals to Shear Stress divided by Shear Strain which is also equals to a constant value known as the Shear Modulus. Shear Modulus is determined by the material of the object.

A homophone for "shear" is "sheer".