Is the rock suitable?
Choosing Sample A or B
Here is the results table with extra results added after leaving the samples in water for another 10 minutes.
| Sample A | Sample B | |
|---|---|---|
| Weight before standing in water | 600g | 570g |
| Weight after 10 minutes in water | 630g | 610g |
| Weight after 20 minutes in water | 650g | 615g |
| Weight after 30 minutes in water | 655g | 615g |
Fill in these answers:
Think carefully about each question and fill in the answers