If it doesn't say EOW, chances are it's every week, although in first year it tends to vary. iirc, my Kin 1Y03/1YY3 labs didn't say EOW, but they actually were
You'll find out for sure on your first day of classes, though.
Bio1A03 had hugely annoying prelabs when I took it, although they might have changed it. There was also one formal lab report to hand in, and it was done in partners. It was also a huge pain, though. 1M03 (and occasionally 1A03 I think) had small post-labs that had to be handed in the next day in the drop boxes, but these were usually only 1-2 worksheets, so not too bad. They've been in the process of changing these courses for a while though, so things could be different now. They stopped calling the 1M03 dry labs 'labs' and they're now labelled as tutorials, for example
Also, for chem 1A03/1AA3 and bio 1A03, our labs were EOW but we had tutorials on the 'off' week during the same lab slot. None of these tutorials were mandatory though, but I think they made the chem 1A03 ones mandatory last year.
In first year, there's more of an emphasis on prelabs than postlabs, so don't worry too much about formal lab reports until second year--the few they have you do in first year are just practise for second year