An Assessment for kids to improve English Spelling. Thomas Edison invented the electric light bulb, and sixth-grader Zachary Anglin improved it. He didn’t like being stuck in the dark when a light bulb burned out, so he invented a new light bulb. It has two fi laments, although one is thicker than the other. When the fi rst one burns out, the other one provides a dim light, warning you to change the bulb.
This worksheet was kindly provided by Evan-Moor Corp.