Defend your above answer that the slow erosion with water where parts of the pyramid crumble and fall away being either a physical or chemical change. How do you know for sure?
Question 9
9.
Question 10
10.
Defend your above answer that heating the limestone reacts off carbon dioxide gas leaving behind lime that is white and more crumbly texture. How do you know for sure?
The above picture is of the Giza Pyramid of Egypt. The pyramid has a rough texture.
Rough tecture is a physical property that is intensive
Rough tecture is a physical property that is extensive
Rough tecture is a chemical property
The pyramid has a sandstone color.
Sandstone color is a physical property that is intensive
Sandstone color is a physical property that is extensive
Sandstone color is a chemical property
The pyramid has a does not react with rainwater.
Does not react with rainwater is a physical property that is intensive
Does not react with rainwater is a physical property that is extensive
Does not react with rainwater is a chemical property
The pyramid has a length of 230 meters.
230 meters is a physical property that is intensive
230 meters is a physical property that is extensive
230 meters is a chemical property
The pyramid has survived so long since it is made of limestone which has a very low solubility with water (ability to dissolve in water).
Solubility with water is a property that is intensive
Solubility with water is a physical property that is extensive
Solubility with water is a chemical property
The mass is estimated to be 80,000 kg.
80,000kg is a property that is intensive
80,000 kg is a physical property that is extensive
80,000 kg is a chemical property
The slowly there is erosion with solubility with water that will make parts of the pyramid crumble and fall away.
This is an example of a physical change
This is an example of a chemical change
Direct heat to the limestone reacts off carbon dioxide gas leaving behind lime. The lime is white and will have a more crumbly texture than the original limestone.
