This card game has 40 different formulas for compounds. Each player has half the deck and turns one over at a time. They must calculate the molar mass of their compound. The winner of the round is the player with the higher molar mass. The game winner is the player with the most cards won when all the cards have been played. There is a periodic table for each player.
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.