"Quels sont les résultats des expériences ?"

Translation: What are the results of the experiments?

[shrinkdad]

Why is it 'Quels' and not 'Qui'?

[judieleah]

'experience' is rarely plural in English

[ferynn]

Maybe in a scientific context ? I've heard several english speaking persons say that, and I work in Physics.

[zenolee]

In science you would use "experiments", not "experience"

[msinykin]

The French word "expérience" means both "experience" and "experiment".

[ian116730]

experience was marked as wrong for me

[kathygeorge]

I said, "What are the test results?" Let me have it. Why is this ridiculous?

[NCThom]

"What are the experiments' results?" was marked wrong. I've reported it. Let me use my Saxon genitive when I can!

[judieleah]

yes, fair enough - especially since 'experiments' is another accepted translation

[jgood986]

Also, why does des function as "the" here?

[shrinkdad]

'des' functions as 'of the'.

[milesnagopaleen]

Here is a complete explanation:
http://french.about.com/od/grammar/a/de-vs-du-de-la-des.htm