Which option is a natural material that is not a fossil fuel?(1 point)
Responses
natural gas
natural gas
cotton
cotton
petroleum
petroleum
vinyl
cotton
What must happen for a natural resource to become a synthetic material?(1 point)
Responses
It needs to go through a phase change.
It needs to go through a phase change.
It needs to be dried out.
It needs to be dried out.
It needs to be pounded very thin.
It needs to be pounded very thin.
It needs to go through a chemical reaction.
It needs to go through a chemical reaction.
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 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
a natural resource used to make synthetic materials
a chain of repeating compounds found in both natural and synthetic materials
How is plastic made?(1 point)
Responses
Coal 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.
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.
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.
Coal and natural gas are broken down from long chains into the smaller compounds we call plastic.