We can do the following by using a system of measurement: _____.
Systems of measurement were used throughout human history.
Early systems of measurement were often based on the human body, such as one “angul” (about 1 cm) being the width of a finger. However, not all bodies are the same so these measurements can be inaccurate. How were these measurement differences resolved?
You’ve decided to use a new recipe to make dinner. It says you need “1 kg rice.” What do the “1” and “kg” represent?
_____ is an example of a non-standard unit of measurement.
The ancient Greek mathematician Eratosthenes was the first person to calculate the circumference of Earth by measuring the angle of sunbeams and shadows at two points on the globe. What is this an example of?
When scientists refer to “measurement error” they are indicating that mistakes were made.
When scientists report error in their data, they are _____.