Procedure

Procedure is a scientific word that means the way you're testing something.

I have 8 kinds of water. I think they will be heaviest to lightest

1. Kiawah Island Lagoon
2. Flint Creek
3. Tennessee River
4. Pacific Ocean
5. Atlantic Ocean
6. Hartselle Tap
7. Los Angeles Tap
8. Distilled Water

I filled test tubes with 25 ml of each kind of water.

Then I put an empty test tube on a scale. I did this so I would know how much the tube weighs and how much the water weighs.

Then I put every test tube on the scale.