Hey! Your game was turtloid themed too! :'D Im really surprised by how much I DIDNT know about turtles and even more surprised by some of the fact I DID already know.

Im not sure if there was sound but the webgl version was silent (at least for me anyway). Im not sure if I just missed the instructions explaining how long a turn was, but that timer would have worked much better as a countdown timer for intuitive purposes, sometimes I found myself run out of time without realising and it got a little stressful when reading :) 

Since some of your turtle facts are very specific, you could also add a hint system, (say get a hint for getting 2 correct answers in a row or maybe just a limited number of hints per board) that reveal which card is the 'bad' answer. also often all three answers were fairly similar so even knowing the fact it wasn't clear which answer would send you back and which one would let you retry

having to press space to start turns seems unnecessary when you could have set it to any key to achieve the same effect of letting players have control over the timer without the awkwardness of needing to hit a specific key. this would also have allowed players to play completely without a keyboard