How Do I Make Or Get A Slide To Use On Microscope In Science Career?

I know this isn't a technical issue, or at least I don't think so, but I have been playing a sim who has the Science Career, and one of the things the job keeps asking my sim to do is analyze a crystal,fossil or plant sample on the microscope, but all the parts for that are always grayed out! It says I am missing a slide of which ever of the 3 things I am wanting to look at on the microscope! 

Now I have checked the analyzer thing, I got a cutting from a plant all kinds of stuff, and I still can't see how I am supposed to get a slide of the plants, crystals or fossils! And do have plenty plants and crystals to use as well as metals too! But I don't understand how I am supposed to make a slide to use with the microscope! 

I know its probably just something I am missing, over looking, but I could really use the help on this!

I wanted to just put it on the forum, since this isn't a tech problem, but now there doesn't really seem to be a place for just getting simple how to game help, now we are stuck with being brought here every time we need help with a simple thing, I am sure one of the other players could have helped me quickly and I would be having to bother you tech guys on something less techy  and probably more just something I am missing, not seeing, in the game! 

You guys need a simple game help area on the forum now, for asking " how to " questions!