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.
Adding Suffixes to Split Vowels. As you learned in Explaining Split Vowel Digraphs, a split vowel spelling is a vowel sound spelled by splitting the e off from the first vowel letter in a vowel digraph (like ie and oe) and tucking a trailing sound in between.hus, some is some, where me is the /m/ sound, none has the /n/ sound spelled ne, infinite has the /t/ sound spelled te and vaccine has the /n/ sound spelled ne.. In all of these cases, the vowel sound in the word is spelled by one of the options for the single vowel letter.