The density of aluminum is 2.70 g/cm3. an irregular shaped piece of aluminum weighing 40.0 is added to a 100ml graduated cylinder containing exactly 50.0ml of water. to what height in the cylinder will the water level rise? show steps plz.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.