Simple:
- water with salt is H2O plus NaCl
- water without salt is H2O
2 cups, salt,and water
If you dissolve salt in water you have not changed the materials chemically.
sugar and salt :)
Salinity is the ratio of the mass of salt to the mass of water in a solution or body of water.
Salt water can be abrasive to certain materials and surfaces over time due to its corrosive properties. It can cause erosion and wear on metals, concrete, and other materials if not properly protected or maintained. Additionally, the high salt content in salt water can be harsh on skin and eyes, causing irritation.
Hot water typically consists of H2O molecules and salt. Cold water with salt is also made up of H2O molecules and dissolves the salt in its solution.
If you're picky, it's several. But the two main materials are water and salt.
salt hot water, plastic jug ,knife, and string
No, brine (a solution of salt in water) is not magnetic. Magnetic properties are associated with certain metals and materials like iron, nickel, and cobalt. Saltwater does not contain these magnetic materials, so it is not magnetic.
If it's for science fair you need a control group, experimental group, and independent variable/dependent variable. I'd suggest what is the effect of salt water on.... whatever it is you like! Materials include: graduated cylinder (measure water equally) water beakers whatever the salt water is testing
Water and a filter would work. Pour the salt/sand into water and the salt will dissolve. Pour the mixture into a filter and the sand will be trapped in the filter. Evaporate the water and the salt will remain.
Two graduated beakers. Water and salt. Put a known amount of plain water in one and the same amount of salt water in the second beaker. Then observe which one evaporates faster.