Sophia Learning
Sophia: Metric Standard Units of Measure (Si Units): Lesson 5
This lesson will introduce standard units of measure (meters, grams, liters) and the physical properties they represent. It is 5 of 6 in the series titled "Metric Standard Units of Measure (SI Units)."
Math Is Fun
Math Is Fun: Metric Mass (Weight)
Grams, kilograms and tonnes are explained, and real life examples are given for each.