Take your phonics to the next level with our printable vowel worksheets! The digraph is two letters, while the “graph” refers to a written form. A digraph is a combination of two letters that spell one sound. The vowel digraph pdfs provide valuable exercises that focus on vowel pairs. These pdfs include engaging exercises that cut through the topic and colorful images to grab attention from grade 1 and 2. Get our vowel digraph worksheets for free and keep coming back for more.