6. They can be used to dry flowers.
You can easily preserve flowers using silica gel. Take a container and fill it with the gel. Then stick flowers in it and cover them with the gel as well. Close the container tightly. Wait for 2-6 days and check to see if the drying process is complete. Then just remove the silica gel and enjoy the results.
7. You can use them to get rid of the unpleasant smell in your apartment.
Silica gel can mask unpleasant odors as well. For example, if you notice a constant smell under your sink, take a big package of silica get and place it under there. All you need to do is to replace the bags every once in a while.