This worksheet gives students several bubbles in which they must color the bubbles that contain words with the vowel sound "book." They are given words such as "shook," "look," "crook," etc. in which they are to color in, and differentiate these words from words such as "food," "scoot," "stool," etc. which do not contain the vowel sound in "book." This is great for an assessment, center, or activity to be done individually or in pairs.