Duplicate of Scientific Method & Metrics

The factor you change in an experiment is a

What is a possible explanation to an observation or answer to a scientific method.

What number is the metric system based on?

What measurement is larger than millimeter?

A statement describing how a particular variable will be measured

Weighing my mealworm I would use which unit-of-measurement?

What section of the scientific method do you state if you refute or prove your hypothesis?

How does knowing the conversion factor help when measuring?

What are the base measurements?

If I measure my mealworms what type of observation am I making?