The variety of shielding gases used in arc welding can be a confusing topic. However, the use of an external shielding gas is a necessary component for some processes, as it is a requirement for surrounding and protecting the arc and molten weld metal from contamination by the atmosphere.
Consonant Digraphs. Second Grade. Spelling/Phonics. Consonant Digraphs Consonant digraphs are two (or three) letters that come together to make one sound. The difference between blends and digraphs is that blends are two letters that make two sounds and digraphs make one sound.onsonant Digraphs. Second Grade. Spelling/Phonics. Consonant Digraphs Consonant digraphs are two (or three) letters that come together to make one sound. The difference between blends and digraphs is that blends are two letters that make two sounds and digraphs make one sound.
Letters | Consonants | Vowels: aeiou y rules | Blends | Common Words. Letter Blends. Certain combinations of two or more consonant letters are called letter blends. Letter blends appear in the beginning or at the end of words to create specific sounds. In letter blends you can hear the sound of each letter. If the letters make a single sound they are called digraphs. Additionally, we have added other common letter combinations that include vowels. Click on the following letter combinations to hear their sounds: