Which of the following phonemic awareness activities involves blending sounds?

The activity that involves blending sounds is the process of combining individual sounds to form words. This refers to the action of taking separate phonemes—like the sounds /k/, /a/, and /t/—and merging them together to create the word "cat." This skill is fundamental in phonemic awareness as it helps learners understand how sounds come together to create meaning.

In contrast, isolating sounds focuses on recognizing individual phonemes within a word; segmenting sounds breaks down a word into its constituent phonemes; and substituting sounds involves replacing one sound in a word with another sound to create a different word. These activities are all important for developing phonemic awareness, but they do not specifically involve the blending process that is essential for reading and word formation.