Answer:
The purpose of the experiment is to see how water of different temperature and salinity affect the density.
Explanation:
Temperature and salinity directly affect the density of the water. Water of low temperature is more dense than water of high temperature, BUT, (fresh)water with no salt is less dense than (sea)water with more salt, so temperature and salinity change density of water.
By increasing the action energy
Cause the heat soaks water up from the earth and after it soaks up so much water the precipitation causes the clouds to be full of water then it rain and it starts all over again
<h3><u>Answer;</u></h3>
Constant
<h3><u>Explanation;</u></h3>
- According to the law of conservation of energy, the total amount of energy in the universe is constant.
- The law of Conservation of Energy states that Energy cannot be created or destroyed. The total amount of energy in the universe never changes, although it may change from one form to another.
- Energy never disappears, but it does change from one form to another. For example; when we eat our food has stored energy in it.
The motion becomes smaller. Lets tale the example of water. At gaseous state, the particles moves rapidly in all directions. As it is cooled, it becomes liquid and the motion becomes smaller because the particles are now closer to each other as the attraction forces becomes stronger. As it is cooled further, it becomes solid. At solid state, the particles now vibrate in fixed position. Apply this concept to motion of molecules in a substance.
