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Question
Which procedure could be used to demonstrate that matter is conserved during a physical change?(1 point)
Responses
Find the mass of a piece of ice. Let the ice melt. Find the mass of the liquid water.
Find the mass of a piece of ice. Let the ice melt. Find the mass of the liquid water.
Find the mass of an apple. Cut the apple and remove the core. Find the mass of the remaining apple.
Find the mass of an apple. Cut the apple and remove the core. Find the mass of the remaining apple.
Find the mass of a cup of water. Boil the water. Find the mass of the water that remains.
Find the mass of a cup of water. Boil the water. Find the mass of the water that remains.
Find the mass of a raw egg. Cook the egg. Find the mass of the cooked egg.
Find the mass of a raw egg. Cook the egg. Find the mass of the cooked egg.
The procedure that could be used to demonstrate that matter is conserved during a physical change is:
Find the mass of a piece of ice. Let the ice melt. Find the mass of the liquid water.
To demonstrate that matter is conserved during a physical change, you can use the following procedure:
1. Find the mass of a sample of matter before the physical change.
2. Perform the physical change.
3. Find the mass of the matter after the physical change.
By comparing the mass before and after the physical change, you can determine if matter has been conserved or not.
Let's evaluate each of the given options to see which procedure satisfies this requirement:
Option 1: Find the mass of a piece of ice. Let the ice melt. Find the mass of the liquid water.
This option involves measuring the mass of ice (solid state) and then measuring the mass of the liquid water (liquid state) after the ice has melted. By comparing the mass before and after the physical change, we can determine if matter is conserved. This option demonstrates conservation of matter during the physical change.
Option 2: Find the mass of an apple. Cut the apple and remove the core. Find the mass of the remaining apple.
This option involves measuring the mass of the whole apple and then measuring the mass of the remaining apple after cutting it and removing the core. Although the mass of the apple changes during the physical change, the total mass of the apple remains the same. This option also demonstrates conservation of matter during the physical change.
Option 3: Find the mass of a cup of water. Boil the water. Find the mass of the water that remains.
This option involves measuring the mass of the water in the cup and then measuring the mass of the remaining water after boiling. Since boiling only changes the state of water from liquid to gas, the total mass of the water should remain the same. This option demonstrates conservation of matter during the physical change.
Option 4: Find the mass of a raw egg. Cook the egg. Find the mass of the cooked egg.
This option involves measuring the mass of the raw egg and then measuring the mass of the cooked egg. During cooking, some water content in the egg may evaporate, resulting in a slight change in mass. However, considering the overall system (egg + added heat), matter is still conserved. This option also demonstrates conservation of matter during the physical change.
Therefore, options 1, 2, 3, and 4 all demonstrate conservation of matter during physical changes.