surroundings
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| Why do solids have a regular geometrical shape? |
|
0 | 6645 | March 19, 2018 |
| When a crystal of potassium permanganate is placed in a beaker containing water, its purple colour spreads throughout the water |
|
0 | 11862 | March 19, 2018 |