5. Conclusion

5. Conclusions 

5.1 Practical Applications 

Salt can be used to melt ice on sidewalks and roads in cold countries and during winter so that people do not slip on the ice and so that cars can brake so they do not collide with other cars. And saltwater is important to fishes who live in saltwater to survive. Without saltwater, when the freezing point is higher, water would freeze very easily which causes fishes to die, and affect the ecosystem. Saltwater also provides almost half of the oxygen on Earth, as they absorb carbon and turn them into oxygen.

Completely pure water freezes/melt at -40°C, which means that most water in the world is not pure, even if stated so. There is also Cryopreservation, which freezes things to preserve them, but it is damaging to living tissue, so scientists are trying to find ways to preserve people. Some things that they think of doing are trying to mimic or extract the antifreeze protein from arctic/antarctic fish as they live in subzero temperatures, or they can invent a sort of antifreeze that is not toxic to people.

5.2 Areas for further study

We can perhaps try going to a cold place next time to do an experiment to see how salt affects the melting point of snow.