Mass- triple beam scale
Volume- graduated cylinder
Density- find the mass and the volume of the object. Divide the mass by the volume.
Hope this helps!
Green is the first one
Light blue is the second
Purple is the third
During those months Rachel's mother looked after Aaron with something close to genuine fondness-- not pity, not obligation-- as though Aaron had become the son she always wanted.
This sentence flows very nicely and also makes sense. You can see that the punctuation is proper, the sentence makes sense, and the grammar is correct. With that in mind, that it the correct sentence structure.