Christmas Worksheets & Activities There's a word list and a dozen worksheets to try. Spelling words include: tree, snow, Santa, card, elf, shop, train, sled, bell, and gift. Christmas Spelling Unit - 2nd Grade (Level B) This tree-mendous 2nd grade unit features a word list, word puzzles, and phonics-based spelling worksheets. Christmas Spelling Unit - 3rd Grade (Level C)