Red Group – run, cut, tug, sun, rug, nut, bug, bun

Orange Group (beginning sound only) – thumb, wheel, thorn, whistle, think, whale, thimble, whip, thirteen

Yellow Group (beginning sound only) – crab, cloud, frog, flag, crib, clip, frame, fly, crown, flashlight

Green Group – when, dead, trees, each, sled, death, queen, steam, reach, head, east, street

Blue Group – turn, sure, curve, purr, turkey, cure, purse, burst, pure, curse, purple, curb, hurl, church, hurt, burn