The content of the year 2 spelling curriculum consists of looking more at spelling 'rules'. However by the time your child leaves key stage one s/he needs to be secure at the whole of the key stage one curriculum, which includes all the letters and sounds they have learnt too. For this reason I would recommend making sure there is a balance of revising content from year one and also doing some from the espresso website, I will recommend certain things each week but you are of course welcome to explore what's on there as well.
The pathway you need to follow is: log in to espresso - KS1 - English - Spelling (you are looking out for the icon below)
Revision for this week:
Compound words (there is a video and activity)
Word endings: –le, –el and –al