The correct option is cotton. It is a natural material and not a fossil fuel, whereas vinyl, petroleum, and natural gas are all fossil fuels or synthetic materials derived from fossil fuels.
Question
Which option is a natural material that is not a fossil fuel?(1 point)
Responses
cotton
cotton
vinyl
vinyl
petroleum
petroleum
natural gas
natural gas
7 answers
What must happen for a natural resource to become a synthetic material?(1 point)
Responses
It needs to be dried out.
It needs to be dried out.
It needs to go through a phase change.
It needs to go through a phase change.
It needs to be pounded very thin.
It needs to be pounded very thin.
It needs to go through a chemical reaction.
Responses
It needs to be dried out.
It needs to be dried out.
It needs to go through a phase change.
It needs to go through a phase change.
It needs to be pounded very thin.
It needs to be pounded very thin.
It needs to go through a chemical reaction.
The correct response is It needs to go through a chemical reaction. For a natural resource to be transformed into a synthetic material, it typically undergoes chemical processes that alter its composition or properties.
What is a polymer?(1 point)
Responses
a chain of repeating compounds found in both natural and synthetic materials
a chain of repeating compounds found in both natural and synthetic materials
a natural resource used to make synthetic materials
a natural resource used to make synthetic materials
a piece of a natural resource that has been broken down before it is recycled into new materials
a piece of a natural resource that has been broken down before it is recycled into new materials
a natural resource formed on Earth from plant or animal remains
a natural resource formed on Earth from plant or animal remains
Responses
a chain of repeating compounds found in both natural and synthetic materials
a chain of repeating compounds found in both natural and synthetic materials
a natural resource used to make synthetic materials
a natural resource used to make synthetic materials
a piece of a natural resource that has been broken down before it is recycled into new materials
a piece of a natural resource that has been broken down before it is recycled into new materials
a natural resource formed on Earth from plant or animal remains
a natural resource formed on Earth from plant or animal remains
The correct response is a chain of repeating compounds found in both natural and synthetic materials. Polymers are large molecules made up of repeating structural units (monomers), and they can be found in both natural substances like rubber and silk, as well as synthetic materials like plastics.
How is plastic made?(1 point)
Responses
Coal and natural gas are broken down from long chains into the smaller compounds we call plastic.
Coal and natural gas are broken down from long chains into the smaller compounds we call plastic.
Oil and natural gas are broken down from long chains into the smaller compounds we call plastic.
Oil and natural gas are broken down from long chains into the smaller compounds we call plastic.
Oil and natural gas are chemically broken down into small compounds that combine to form plastic.
Oil and natural gas are chemically broken down into small compounds that combine to form plastic.
Coal and natural gas are chemically broken down into small compounds that combine to form plastic.
Responses
Coal and natural gas are broken down from long chains into the smaller compounds we call plastic.
Coal and natural gas are broken down from long chains into the smaller compounds we call plastic.
Oil and natural gas are broken down from long chains into the smaller compounds we call plastic.
Oil and natural gas are broken down from long chains into the smaller compounds we call plastic.
Oil and natural gas are chemically broken down into small compounds that combine to form plastic.
Oil and natural gas are chemically broken down into small compounds that combine to form plastic.
Coal and natural gas are chemically broken down into small compounds that combine to form plastic.
The correct response is Oil and natural gas are chemically broken down into small compounds that combine to form plastic. This process involves cracking and polymerization, where smaller molecules (monomers) are chemically joined to form long chains (polymers) that constitute plastic.
1 answer