Annie, great work so far.  Now, after you take a hammer to your computer (got to threaten it), we need to start naming parts-click on one of your vertex objects, that will change the menu, go up to the name and type in what it is, do the same for the rest.

Then click on the one that is going to be your fluid, open the texture room, it will be there (you will have a different texture room for each of your objects).  For now, make it a different color-click on color or the tiny arrow head by the little grey box (that will open the  color wheel-select say red do the click thing and the object will turn red.

Why red-doesn't matter, going to change it again anyway-just need a contrast against the gray. 

In the assembly room, move it to the goblet and stuff all of it inside (no red sticking out) and reduce the height to taste (expensive wine, very little in goblet-wine by the gallon or box wine just so it doesn't spill.

Now play around with ungrouping  and regrouping-that will come in handy when you begin making complex stuff with several hundred objects.  Here is how, click on one of the objects say  the stem in the right hand menu and drag it to scene-it is now outside the group, now if you click and drag it over say the base, it will be under the base and is called a child of the base.

These words are famous in 3D.   Parent and child.  Presently you have one parent - group- and four siblings-the three vertex objects and cylinder-each sibling is call a child.

Children can also have children-in the above example, the the stem is a child of the base and the base is a child of the group--did you buy the economy size Excedrin bottle yet. 

I know that you are anxious to make that final rendering of the goblet with neat textures--that's coming-we just have neat tools that are good to learn along the way.

Once you are familiar with the above, we can go on to the texture room and begin to play around in there.  Jan