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.
Two or more consonant letters often follow short vowels in closed syllables (dodge, stretch, back, stuff, doll, mess, jazz). This is a spelling convention; the extra letters do not represent extra sounds. Each of these example words has only one consonant phoneme at the end of the word.he jaw drops open when a vowel in a syllable is spoken. Syllables can be counted by putting your hand under your chin and feeling the number of times the jaw drops for a vowel sound. Spoken syllable divisions often do not coincide with or give the rationale for the conventions of written syllables.