By a 10-year old? Umm.... Is she/he at some special school that teaches only super-skilled children? 4/5 for the graphics, and because it's a dress-up game, 1/5. So I'll give it 3/5
52! This is really hard, and even if you know all the elements, it takes a long time to write them all... Especially some elements like Praseodymium and Unun(something)s. 3/5, this is more a quiz or a test than a game.
Go to the right, and stay there. Points are going to minus-side. 1/5. I've seen enough of this crap. And I have also seen same game, with other sprites.
It is a car! Car!!! Not a turtle! Turtles have heads. But why doesn't this car have front glass, back glass or side glasses...? Oh no! IT'S NOT A CAR! It's... A GIANT TURTLE!
-1/5
Sandstorm eh? 2/5, because of the bug: the other enemy ball got stuck, and at the end, you can't do anything because of the apples: enemies qould become too fast.
What... the... heck? A memory game? When did I see a memory game last time...? Well, ok, it's nice, and stuff, and I think it should get even badges (like "win with 40 or less attempts") if it would have a good menu and all things like that. I'm serious. Seriously.
P.S. My rating is 4/5.
P.P.S. Add that you can choose the size of the game field.