K12 Reader
The Metric System
How did the metric system come to be, and why does the US not use it very much? Your class can learn the answers to these questions with the reading passage included here and then respond to the five related questions.
Curated OER
How Much is a Million?
Fifth graders explore relationship among customary and/or metric units of measurement.
K12 Reader
How Things Move
As part of a comprehension exercise, kids read a physical science article about motion and then answer a series of comprehension questions based on the passage.