What is this leaf?

[MaximumDerek]

It’s for DS’s homework but I can’t for the life of me remember where I picked it up from.

How big is it?

Beech?

Definitely a beech leaf .

Another vote for beech!

I thought beech too but here it is next to a beech and I think they are different.

Elm maybe although we don’t have many elm trees around my way

Birch

Too serrated for beech, elm is distinguishable by the markedly unequal sides to the base of the leaf, birch is wider at the base than that leaf. I wondered Amelanchier, but that's more oblong, not so tapered at the tip, and also wondered hornbeam, but don't think it's that either.

"It’s for DS’s homework ... where I picked it up from."

Hazel?

Silver birch

No not hazel but maybe Alder?

Alder buckthorn?

MereDintofPandiculation he might have picked it up, I can’t remember! He’s only 4 though, he’d bloody better do it when he’s older...

Hazel and Alder are much broader than this leaf. Alder buckthorn has a similar vein patter to dogwood if I remember rightly, so not that either.

There's an app with a UK version for identifying leaves.

That looks like a birch leaf. How big is it?

Birch

It really isn't birch! It's got the texture of birch, but birch leaves are more triangular in shape.
www.woodlands.co.uk/blog/tree-identification/birch/

I know, I'm being singularly unhelpful on this thread, saying what it isn't, but no clue as to what it is ...

It could be elder, they have a serrated edge, but are usually a more oval shape.

Birch leaves can be oval too. That's definitely birch.

Try the British Trees app (or so says my ds who is a woodland nut)