This is a game of Tic Tac Toe with a DIFFERENCE --- the player must correctly answer a question in order to place a marker on the board.
There is an Identification Chart to help the student learn the tree leaves and can be used in the game.
There are many nature study or science games in my TPT store --
Crossword, Word Search, Bingo, Rummy, Concentration, Sorting,
Tic Tac Know, Dominoes and Board games.