No need to dig in the dirt to find worms to measure. This worksheet has them here for you, without the mess. On this worksheet, kids first cut out a six-inch ruler. Then, they use the ruler to measure the lengths of four earthworms in inches, writing the lengths in the boxes provided. Finally, they compare lengths, circling the shortest worm in red and the longest one in green. This worksheet offers practice with measuring to determine length, measuring in standard units, writing numbers, and comparing lengths. Of course, if your child prefers live worms, he can measure those too!