1. Water, a Liquid: Investigation 4
What does a drop of water weigh?
4. Share the results
All Class 10 Mins Notebook
Survey the class for the results and enter their data in a class chart, asking each student to determine the weight of one drop once they provide the number of drops made.
| Weight of water | Number of drops | Weight of 1 drop |
|---|---|---|
| 1g | 29 | 1/29thg |
| 1g | 30 | 1/30thg |
| 1g | 32 | 1/32ndg |
| etc. |
Address the investigation question:
What does a drop of water from our classroom dropper weigh? Does a drop of water weigh more or less than one gram?
- approximately 1/30th of a gram?
Have students complete the Science Notebook page [Reflecting on the weight of small bits of matter].
Note: Here is another example of small differences in a situation where one might expect everyone to get the same result. Students should understand the possible reasons for the differences and agree to select a "typical" value for the weight of one drop.
